Bài 22: So Sánh Số Có Hai Chữ Số
<h3 id="khaacutem-phaacute">Khám phá</h3> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/161-1662042277.png.webp" width="529" height="148" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-0" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-0" loading="lazy"></p><div> <div class="ads-horizontal-wrapped" style="height: auto !important; min-height: 0px !important;">
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</div>16 &lt; 19<p></p> <p>19 &gt; 16</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/162-1662042294.png.webp" width="507" height="144" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-1" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-1" loading="lazy">42 &gt; 25</p> <p>25 &lt; 42</p> <h3 id="hoat-dong">Hoạt động</h3> <h4>1. So sánh (theo mẫu).</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/163-1662042327.png.webp" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-2" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-2" loading="lazy"></p> <h4>2. Túi nào có số lớn hơn?</h4> <p>a)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/171-1662042348.png.webp" width="241" height="199" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-3" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-3" loading="lazy"></p> <p>b)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/172-1662042364.png.webp" width="232" height="196" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-4" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-4" loading="lazy"></p> <p>c)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/173-1662042373.png.webp" width="217" height="202" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-5" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-5" loading="lazy"></p><div> <div class="ads-horizontal-wrapped" style="height: auto !important; min-height: 0px !important;">
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</div><p></p> <p>3. &gt;; &lt;; =?</p> <p>24 ... 19; 56 ... 65</p> <p>35 ... 37; 90 ... 89</p> <p>68 ... 68; 71 ... 81</p> <h4>4.</h4> <p>a) Chiếc lọ nào có số lớn nhất?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/174-1662042506.png.webp" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-6" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-6" loading="lazy">b) Chiếc lọ nào có số bé nhất?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/175-1662042525.png.webp" width="702" height="160" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-7" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-7" loading="lazy"></p> <h3 id="luyen-tap">Luyện tập</h3> <h4>1. Số nào lớn hơn trong mỗi cặp?</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/181-1662042711.png.webp" width="610" height="185" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-8" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-8" loading="lazy"></p> <h4>2. Số nào bé hơn trong mỗi cặp?</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/182-1662042855.png.webp" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-9" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-9" loading="lazy"></p> <h4>3. Đổi chỗ hai chiếc xe để các số trên xe sắp xếp theo thứ tự từ bé đến lớn.</h4> <p>a)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/183-1662042888.png.webp" width="457" height="109" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-10" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-10" loading="lazy"></p><div> <div class="ads-horizontal-wrapped" style="height: auto !important; min-height: 0px !important;">
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</div><p></p> <p>b)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/184-1662042948.png.webp" width="456" height="112" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-11" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-11" loading="lazy"></p> <p>&nbsp;</p> <h4>4. Đổi chỗ hai chiếc xe để các số trên xe sắp xếp theo thứ tự từ lớn đến bé.</h4> <p>a)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/185-1662042995.png.webp" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-12" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-12" loading="lazy"></p> <p>b)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/186-1662043008.png.webp" width="475" height="111" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-13" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-13" loading="lazy"></p> <p>&nbsp;</p> <h3 id="trograve-choi">Trò chơi</h3> <p><strong>Cầu thang - Cầu trượt</strong></p> <p>Cách chơi:</p> <ul> <li>Chơi theo nhóm.</li> <li>Người chơi bắt đầu từ ô xuất phát. Khi đến lượt, người chơi gieo xúc xắc. Đếm số chấm ở mặt trên xúc xắc rồi di chuyển số ô bằng số chấm nhận được. Đọc số bé hơn trong ô đó. Khi đến cầu thang, em leo lên. Khi đến cầu trượt, em trượt xuống.</li> <li>Trò chơi kết thúc khi có người về đến đích.</li> </ul> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/191-1662043180.png.webp" width="164" height="157" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-14" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-14" loading="lazy"></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/192-1662043188.png.webp" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-15" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-15" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div><p></p> <h3 id="luyen-tap">Luyện tập</h3> <h4>1. Đ, S?</h4> <p>a)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/201-1662043567.png.webp" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-16" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-16" loading="lazy"></p> <p>b)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/202-1662043575.png.webp" width="297" height="141" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-17" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-17" loading="lazy"></p> <p>c)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/203-1662043586.png.webp" width="289" height="147" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-18" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-18" loading="lazy"></p> <p>d)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/204-1662043595.png.webp" width="292" height="145" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-19" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-19" loading="lazy"></p> <p>&nbsp;</p> <h4>2.</h4> <p>a) &gt;; &lt;; =?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/205-1662043744.png.webp" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-20" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-20" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div>b) Tìm đường xe đi đến trạm xăng.<p></p> <h4>3. Lớp 1A có 33 học sinh, lớp 1B có 30 học sinh, lớp 1C có 35 học sinh. Hỏi:</h4> <p>a) Lớp 1A và lớp 1B, lớp nào có nhiều học sinh hơn?</p> <p>b) Lớp 1B và lớp 1C, lớp nào có ít học sinh hơn?</p> <p>c) Lớp nào có nhiều học sinh nhất?</p> <p>d) Lớp nào có ít học sinh nhất?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/21-1662043957.png.webp" alt="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-21" title="hinh-anh-bai-22-so-sanh-so-co-hai-chu-so-320-21" loading="lazy"></p>