Bài 39: Ôn Tập Các Số Và Phép Tính Trong Phạm Vi 100
<h3 id="luyen-tap">Luyện tập</h3> <h4>1. Số?</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/941-1662185615.png.webp" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-0" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-0" loading="lazy"></p><div> <div class="ads-horizontal-wrapped" style="height: auto !important; min-height: 0px !important;">
<span class="ads-title">Advertisement</span>
<script async="" src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-8123786206223951" crossorigin="anonymous" type="text/javascript" data-checked-head="true"></script>

<ins class="adsbygoogle" style="display: block; height: 280px;" data-ad-client="ca-pub-8123786206223951" data-ad-slot="2203391893" data-ad-format="auto" data-full-width-responsive="true" data-adsbygoogle-status="done" data-ad-status="unfilled"><div id="aswift_1_host" style="border: none; height: 280px; width: 741px; margin: 0px; padding: 0px; position: relative; visibility: visible; background-color: transparent; display: inline-block; overflow: visible;" tabindex="0" title="Advertisement" aria-label="Advertisement"><iframe id="aswift_1" name="aswift_1" style="left:0;position:absolute;top:0;border:0;width:741px;height:280px;" sandbox="allow-forms allow-popups allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation" width="741" height="280" frameborder="0" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" src="https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-8123786206223951&amp;output=html&amp;h=280&amp;slotname=2203391893&amp;adk=3553368404&amp;adf=2501886532&amp;pi=t.ma~as.2203391893&amp;w=741&amp;fwrn=4&amp;fwrnh=100&amp;lmt=1690924475&amp;rafmt=1&amp;format=741x280&amp;url=https%3A%2F%2Fsachgiaokhoa.online%2Fbai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356G2942.html&amp;fwr=0&amp;fwrattr=true&amp;rpe=1&amp;resp_fmts=3&amp;wgl=1&amp;uach=WyJtYWNPUyIsIjEzLjAuMCIsIng4NiIsIiIsIjExNS4wLjU3OTAuMTE0IixbXSwwLG51bGwsIjY0IixbWyJOb3QvQSlCcmFuZCIsIjk5LjAuMC4wIl0sWyJHb29nbGUgQ2hyb21lIiwiMTE1LjAuNTc5MC4xMTQiXSxbIkNocm9taXVtIiwiMTE1LjAuNTc5MC4xMTQiXV0sMF0.&amp;dt=1690924475229&amp;bpp=1&amp;bdt=414&amp;idt=235&amp;shv=r20230731&amp;mjsv=m202307270501&amp;ptt=9&amp;saldr=aa&amp;abxe=1&amp;cookie=ID%3D94547395a8fa18af-22e89ad22ae300c0%3AT%3D1690912062%3ART%3D1690924219%3AS%3DALNI_MYNbCG599XmevrUPCYJ3Zv-Np5EvA&amp;gpic=UID%3D00000d3b2ce8a729%3AT%3D1690912062%3ART%3D1690924219%3AS%3DALNI_MaVlHrwAJeI0KGbMoTcFZDk5BwO2Q&amp;prev_fmts=0x0&amp;nras=1&amp;correlator=5684858448428&amp;frm=20&amp;pv=1&amp;ga_vid=1315179917.1690924475&amp;ga_sid=1690924475&amp;ga_hid=1192172455&amp;ga_fc=0&amp;u_tz=420&amp;u_his=50&amp;u_h=1080&amp;u_w=1920&amp;u_ah=1055&amp;u_aw=1920&amp;u_cd=24&amp;u_sd=1&amp;dmc=8&amp;adx=394&amp;ady=762&amp;biw=1910&amp;bih=970&amp;scr_x=0&amp;scr_y=0&amp;eid=44759842%2C44759875%2C44759926%2C31076481%2C42532316%2C44788441&amp;oid=2&amp;pvsid=3203295440625823&amp;tmod=2137688851&amp;uas=0&amp;nvt=1&amp;fc=1920&amp;brdim=0%2C25%2C0%2C25%2C1920%2C25%2C1920%2C1055%2C1920%2C970&amp;vis=1&amp;rsz=%7C%7CoeE%7C&amp;abl=CS&amp;pfx=0&amp;fu=128&amp;bc=31&amp;ifi=2&amp;uci=a!2&amp;fsb=1&amp;xpc=kUcnrsrDvV&amp;p=https%3A//sachgiaokhoa.online&amp;dtd=247" data-google-container-id="a!2" data-google-query-id="CI202cWwvIADFY7UFgUdEKcNjQ" data-load-complete="true"></iframe></div></ins>
<script type="text/javascript">
            (adsbygoogle = window.adsbygoogle || []).push({});
        </script>
</div>
</div><p></p> <table style="border-collapse: collapse; width: 99.9265%;" border="1"> <tbody> <tr> <td style="width: 21.9187%; text-align: center;">Chục</td> <td style="width: 21.9187%; text-align: center;">Đơn vị</td> <td style="width: 21.9187%; text-align: center;">Viết số</td> <td style="width: 21.9187%; text-align: center;">Đọc số</td> </tr> <tr> <td style="width: 21.9187%; text-align: center;">3</td> <td style="width: 21.9187%; text-align: center;">5</td> <td style="width: 21.9187%; text-align: center;">35</td> <td style="width: 21.9187%; text-align: center;">Ba mươi lăm</td> </tr> </tbody> </table> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/942-1662186005.png.webp" width="280" height="148" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-1" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-1" loading="lazy"></p> <table style="border-collapse: collapse; width: 99.9265%;" border="1"> <tbody> <tr> <td style="width: 21.9187%; text-align: center;">Chục</td> <td style="width: 21.9187%; text-align: center;">Đơn vị</td> <td style="width: 21.9187%; text-align: center;">Viết số</td> <td style="width: 21.9187%; text-align: center;">Đọc số</td> </tr> <tr> <td style="width: 21.9187%; text-align: center;">4</td> <td style="width: 21.9187%; text-align: center;">4</td> <td style="width: 21.9187%; text-align: center;">?</td> <td style="width: 21.9187%; text-align: center;">Bốn mươi tư</td> </tr> </tbody> </table> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/943-1662186050.png.webp" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-2" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-2" loading="lazy"></p> <table style="border-collapse: collapse; width: 99.9265%;" border="1"> <tbody> <tr> <td style="width: 21.9187%; text-align: center;">Chục</td> <td style="width: 21.9187%; text-align: center;">Đơn vị</td> <td style="width: 21.9187%; text-align: center;">Viết số</td> <td style="width: 21.9187%; text-align: center;">Đọc số</td> </tr> <tr> <td style="width: 21.9187%; text-align: center;">?</td> <td style="width: 21.9187%; text-align: center;">?</td> <td style="width: 21.9187%; text-align: center;">61</td> <td style="width: 21.9187%; text-align: center;">Sáu mươi mốt</td> </tr> </tbody> </table> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/944-1662186084.png.webp" width="277" height="147" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-3" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-3" loading="lazy"></p> <table style="border-collapse: collapse; width: 99.9265%;" border="1"> <tbody> <tr> <td style="width: 21.9187%; text-align: center;">Chục</td> <td style="width: 21.9187%; text-align: center;">Đơn vị</td> <td style="width: 21.9187%; text-align: center;">Viết số</td> <td style="width: 21.9187%; text-align: center;">Đọc số</td> </tr> <tr> <td style="width: 21.9187%; text-align: center;">8</td> <td style="width: 21.9187%; text-align: center;">0</td> <td style="width: 21.9187%; text-align: center;">?</td> <td style="width: 21.9187%; text-align: center;">Tám mươi</td> </tr> </tbody> </table> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/945-1662186171.png.webp" width="280" height="145" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-4" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-4" loading="lazy"></p> <table style="border-collapse: collapse; width: 99.9265%;" border="1"> <tbody> <tr> <td style="width: 21.9187%; text-align: center;">Chục</td> <td style="width: 21.9187%; text-align: center;">Đơn vị</td> <td style="width: 21.9187%; text-align: center;">Viết số</td> <td style="width: 21.9187%; text-align: center;">Đọc số</td> </tr> <tr> <td style="width: 21.9187%; text-align: center;">?</td> <td style="width: 21.9187%; text-align: center;">?</td> <td style="width: 21.9187%; text-align: center;">53</td> <td style="width: 21.9187%; text-align: center;">Năm mươi ba</td> </tr> </tbody> </table> <h4>2. Số?</h4> <p>a)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/951-1662186301.png.webp" width="678" height="184" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-5" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-5" loading="lazy"></p><div> <div class="ads-horizontal-wrapped" style="height: auto !important; min-height: 0px !important;">
<span class="ads-title">Advertisement</span>
<script async="" src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-8123786206223951" crossorigin="anonymous" type="text/javascript" data-checked-head="true"></script>

<ins class="adsbygoogle" style="display: block; height: 0px;" data-ad-client="ca-pub-8123786206223951" data-ad-slot="2203391893" data-ad-format="auto" data-full-width-responsive="true" data-adsbygoogle-status="done"><div id="aswift_2_host" style="border: none; height: 0px; width: 741px; margin: 0px; padding: 0px; position: relative; visibility: visible; background-color: transparent; display: inline-block; overflow: visible; opacity: 1;" tabindex="0" title="Advertisement" aria-label="Advertisement"><iframe id="aswift_2" name="aswift_2" style="left: 0px; position: absolute; top: 0px; border: 0px; width: 741px; height: 0px;" sandbox="allow-forms allow-popups allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation" width="741" height="0" frameborder="0" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" src="https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-8123786206223951&amp;output=html&amp;h=280&amp;slotname=2203391893&amp;adk=3553368404&amp;adf=1477877864&amp;pi=t.ma~as.2203391893&amp;w=741&amp;fwrn=4&amp;fwrnh=100&amp;lmt=1690924475&amp;rafmt=1&amp;format=741x280&amp;url=https%3A%2F%2Fsachgiaokhoa.online%2Fbai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356G2942.html&amp;fwr=0&amp;fwrattr=true&amp;rpe=1&amp;resp_fmts=3&amp;wgl=1&amp;uach=WyJtYWNPUyIsIjEzLjAuMCIsIng4NiIsIiIsIjExNS4wLjU3OTAuMTE0IixbXSwwLG51bGwsIjY0IixbWyJOb3QvQSlCcmFuZCIsIjk5LjAuMC4wIl0sWyJHb29nbGUgQ2hyb21lIiwiMTE1LjAuNTc5MC4xMTQiXSxbIkNocm9taXVtIiwiMTE1LjAuNTc5MC4xMTQiXV0sMF0.&amp;dt=1690924475231&amp;bpp=1&amp;bdt=416&amp;idt=295&amp;shv=r20230731&amp;mjsv=m202307270501&amp;ptt=9&amp;saldr=aa&amp;abxe=1&amp;cookie=ID%3D94547395a8fa18af-22e89ad22ae300c0%3AT%3D1690912062%3ART%3D1690924219%3AS%3DALNI_MYNbCG599XmevrUPCYJ3Zv-Np5EvA&amp;gpic=UID%3D00000d3b2ce8a729%3AT%3D1690912062%3ART%3D1690924219%3AS%3DALNI_MaVlHrwAJeI0KGbMoTcFZDk5BwO2Q&amp;prev_fmts=0x0%2C741x280&amp;nras=1&amp;correlator=5684858448428&amp;frm=20&amp;pv=1&amp;ga_vid=1315179917.1690924475&amp;ga_sid=1690924475&amp;ga_hid=1192172455&amp;ga_fc=0&amp;u_tz=420&amp;u_his=50&amp;u_h=1080&amp;u_w=1920&amp;u_ah=1055&amp;u_aw=1920&amp;u_cd=24&amp;u_sd=1&amp;dmc=8&amp;adx=394&amp;ady=2431&amp;biw=1910&amp;bih=970&amp;scr_x=0&amp;scr_y=0&amp;eid=44759842%2C44759875%2C44759926%2C31076481%2C42532316%2C44788441&amp;oid=2&amp;pvsid=3203295440625823&amp;tmod=2137688851&amp;uas=0&amp;nvt=1&amp;fc=1920&amp;brdim=0%2C25%2C0%2C25%2C1920%2C25%2C1920%2C1055%2C1920%2C970&amp;vis=1&amp;rsz=%7C%7CoeEbr%7C&amp;abl=CS&amp;pfx=0&amp;fu=128&amp;bc=31&amp;ifi=3&amp;uci=a!3&amp;btvi=1&amp;fsb=1&amp;xpc=8VPhWXQWED&amp;p=https%3A//sachgiaokhoa.online&amp;dtd=300" data-google-container-id="a!3" data-google-query-id="CJOR38WwvIADFdOglgoda9cMrA" data-load-complete="true"></iframe></div></ins>
<script type="text/javascript">
            (adsbygoogle = window.adsbygoogle || []).push({});
        </script>
</div>
</div><p></p> <p>b) 47 = 40 + 7</p> <p>53 = 50 + ...</p> <p>69 = ... + 9</p> <p>96 = ... + ...</p> <h4>3. Độ dài một bước chân của Mai, VIệt, Nam lần lượt là 32 cm, 30 cm, 34 cm.</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/952-1662186376.png.webp" width="364" height="226" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-6" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-6" loading="lazy">a) Ai có bước chân dài nhất?</p> <p>b) Ai có bước chân ngắn nhất?</p> <h4>4. Bạn Việt ghép hai trong ba tấm thẻ như hình vẽ để được các số có hai chữ số. Việt có thể ghép được những số nào?</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/953-1662186772.png.webp" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-7" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-7" loading="lazy"></p> <h3 id="luyen-tap">Luyện tập</h3> <h4>1.</h4> <p>a) Tính nhẩm.</p> <p>80 + 10; 30 + 40; 60 + 20</p> <p>90 - 10; 70 - 40; 80 - 20</p> <p>b) Đặt tính rồi tính.</p> <p>32 + 15; 71 + 24; 40 + 39</p> <p>76 - 42; 36 - 21; 47 - 22</p> <h4>2. Hai phép tính nào có cùng kết quả?</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/96-1662187015.png.webp" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-8" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-8" loading="lazy"></p> <h4>3. Số?</h4> <p>a)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/971-1662187036.png.webp" width="595" height="151" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-9" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-9" loading="lazy"></p> <p>b)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/972-1662187046.png.webp" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-10" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-10" loading="lazy"></p><div> <div class="ads-horizontal-wrapped" style="height: auto !important; min-height: 0px !important;">
<span class="ads-title">Advertisement</span>
<script async="" src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-8123786206223951" crossorigin="anonymous" type="text/javascript" data-checked-head="true"></script>

<ins class="adsbygoogle" style="display: block; height: 0px;" data-ad-client="ca-pub-8123786206223951" data-ad-slot="2203391893" data-ad-format="auto" data-full-width-responsive="true" data-adsbygoogle-status="done"><div id="aswift_3_host" style="border: none; height: 0px; width: 741px; margin: 0px; padding: 0px; position: relative; visibility: visible; background-color: transparent; display: inline-block; overflow: visible; opacity: 1;" tabindex="0" title="Advertisement" aria-label="Advertisement"><iframe id="aswift_3" name="aswift_3" style="left: 0px; position: absolute; top: 0px; border: 0px; width: 741px; height: 0px;" sandbox="allow-forms allow-popups allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation" width="741" height="0" frameborder="0" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" src="https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-8123786206223951&amp;output=html&amp;h=280&amp;slotname=2203391893&amp;adk=3553368404&amp;adf=1672038518&amp;pi=t.ma~as.2203391893&amp;w=741&amp;fwrn=4&amp;fwrnh=100&amp;lmt=1690924476&amp;rafmt=1&amp;format=741x280&amp;url=https%3A%2F%2Fsachgiaokhoa.online%2Fbai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356G2942.html&amp;fwr=0&amp;fwrattr=true&amp;rpe=1&amp;resp_fmts=3&amp;wgl=1&amp;uach=WyJtYWNPUyIsIjEzLjAuMCIsIng4NiIsIiIsIjExNS4wLjU3OTAuMTE0IixbXSwwLG51bGwsIjY0IixbWyJOb3QvQSlCcmFuZCIsIjk5LjAuMC4wIl0sWyJHb29nbGUgQ2hyb21lIiwiMTE1LjAuNTc5MC4xMTQiXSxbIkNocm9taXVtIiwiMTE1LjAuNTc5MC4xMTQiXV0sMF0.&amp;dt=1690924475232&amp;bpp=1&amp;bdt=418&amp;idt=343&amp;shv=r20230731&amp;mjsv=m202307270501&amp;ptt=9&amp;saldr=aa&amp;abxe=1&amp;cookie=ID%3D94547395a8fa18af-22e89ad22ae300c0%3AT%3D1690912062%3ART%3D1690924219%3AS%3DALNI_MYNbCG599XmevrUPCYJ3Zv-Np5EvA&amp;gpic=UID%3D00000d3b2ce8a729%3AT%3D1690912062%3ART%3D1690924219%3AS%3DALNI_MaVlHrwAJeI0KGbMoTcFZDk5BwO2Q&amp;prev_fmts=0x0%2C741x280%2C741x280&amp;nras=1&amp;correlator=5684858448428&amp;frm=20&amp;pv=1&amp;ga_vid=1315179917.1690924475&amp;ga_sid=1690924475&amp;ga_hid=1192172455&amp;ga_fc=0&amp;u_tz=420&amp;u_his=50&amp;u_h=1080&amp;u_w=1920&amp;u_ah=1055&amp;u_aw=1920&amp;u_cd=24&amp;u_sd=1&amp;dmc=8&amp;adx=394&amp;ady=3751&amp;biw=1910&amp;bih=970&amp;scr_x=0&amp;scr_y=0&amp;eid=44759842%2C44759875%2C44759926%2C31076481%2C42532316%2C44788441&amp;oid=2&amp;pvsid=3203295440625823&amp;tmod=2137688851&amp;uas=0&amp;nvt=1&amp;fc=1920&amp;brdim=0%2C25%2C0%2C25%2C1920%2C25%2C1920%2C1055%2C1920%2C970&amp;vis=1&amp;rsz=%7C%7CoeEbr%7C&amp;abl=CS&amp;pfx=0&amp;fu=128&amp;bc=31&amp;ifi=4&amp;uci=a!4&amp;btvi=2&amp;fsb=1&amp;xpc=hd8yG92CMQ&amp;p=https%3A//sachgiaokhoa.online&amp;dtd=1250" data-google-container-id="a!4" data-google-query-id="CJTXmMawvIADFQbQFgUdZOYJqA" data-load-complete="true"></iframe></div></ins>
<script type="text/javascript">
            (adsbygoogle = window.adsbygoogle || []).push({});
        </script>
</div>
</div><p></p> <p>&nbsp;</p> <h4>4. Số?</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/973-1662187064.png.webp" width="729" height="376" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-11" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-11" loading="lazy"></p> <table style="border-collapse: collapse; width: 99.9265%;" border="1"> <tbody> <tr> <td style="width: 16.9242%; text-align: center;">Phép tính</td> <td style="width: 16.9242%; text-align: center;">40 - 10</td> <td style="width: 16.9242%; text-align: center;">66 - 16</td> <td style="width: 16.9242%; text-align: center;">38 - 8</td> <td style="width: 16.9334%; text-align: center;">53 - 3</td> </tr> <tr> <td style="width: 16.9242%; text-align: center;">Kết quả</td> <td style="width: 16.9242%; text-align: center;">30</td> <td style="width: 16.9242%; text-align: center;">?</td> <td style="width: 16.9242%; text-align: center;">?</td> <td style="width: 16.9334%; text-align: center;">?</td> </tr> </tbody> </table> <h3 id="luyen-tap">Luyện tập</h3> <h4>1. Số?</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/981-1662187502.png.webp" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-12" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-12" loading="lazy"></p> <h4>2.</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/982-1662187514.png.webp" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-13" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-13" loading="lazy">a) Tìm kết quả phép tính trong mỗi ngôi sao.</p> <p>b) Tìm những ngôi sao ghi phép tính có kết quả lớn hơn 26.</p> <h4>3. Lớp em chăm sóc 75 cây hoa hồng trong vườn hoa của trường. Sau một thời gian, sáng nay đã có 52 cây nở hoa. Hỏi còn bao nhiêu cây hoa hồng chưa nở hoa?</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/991-1662187604.png.webp" width="228" height="64" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-14" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-14" loading="lazy">Em hãy nêu câu trả lời.</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/992-1662187625.png.webp" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-15" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-15" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
<span class="ads-title">Advertisement</span>
<script async="" src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-8123786206223951" crossorigin="anonymous" type="text/javascript" data-checked-head="true"></script>

<ins class="adsbygoogle" style="display: block; height: 280px;" data-ad-client="ca-pub-8123786206223951" data-ad-slot="2203391893" data-ad-format="auto" data-full-width-responsive="true" data-adsbygoogle-status="done"><div id="aswift_4_host" style="border: none; height: 280px; width: 741px; margin: 0px; padding: 0px; position: relative; visibility: visible; background-color: transparent; display: inline-block;"></div></ins>
<script type="text/javascript">
            (adsbygoogle = window.adsbygoogle || []).push({});
        </script>
</div>
</div><p></p> <h4>4. Trong một buổi cắm trại, lớp 1A có 32 bạn, lớp 1B có 35 bạn cùng tham gia. Hỏi cả hai lớp có bao nhiêu bạn cùng tham gia buổi cắm trại?</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/991-1662187664.png.webp" width="228" height="64" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-16" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-16" loading="lazy">Em hãy nêu câu trả lời.</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/993-1662187680.png.webp" alt="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-17" title="hinh-anh-bai-39-on-tap-cac-so-va-phep-tinh-trong-pham-vi-100-356-17" loading="lazy"></p>