Luyện tập chung 5
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</div><p></p> <p>b) <img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-15-200404-1665839050.png.webp" width="575" height="87" alt="hinh-anh-luyen-tap-chung-5-1580-1" title="hinh-anh-luyen-tap-chung-5-1580-1" loading="lazy"></p> <h3 id="2-dat-tiacutenh-roi-tiacutenh">2. Đặt tính rồi tính:</h3> <p>a) 126 + 268</p> <p>687 + 91</p> <p>186 + 5</p> <p>b) 825 - 408</p> <p>536 - 66</p> <p>224 - 8</p> <h3 id="3nbsp">3.&nbsp;</h3> <p>a) Tính nhẩm:</p> <p>230 + 20</p> <p>650 - 150</p> <p>150 + 350</p> <p>835 - 35</p> <p>405 + 45</p> <p>200 - 50</p> <p>b) Trò chơi '' Ai nhanh ai đúng''</p> <p>Mỗi bạn viết hai số có ba chữ số nhỏ hơn 500 rồi tính tổng. Ai có tổng lớn hơn sẽ thắng cuộc.</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-15-200746-1665839274.png.webp" width="533" height="325" alt="hinh-anh-luyen-tap-chung-5-1580-2" title="hinh-anh-luyen-tap-chung-5-1580-2" loading="lazy"></p> <h3 id="4-img-src-uploadstinymceanh-chup-man-hinh-2022-10-15-200941-1665839386pngwebp-width-36-height-62-alt-hinh-anh-luyen-tap-chung-5-1580-3-title-hinh-anh-luyen-tap-chung-5-1580-3-loading-lazy">4. <img src="/uploads/tinymce/anh-chup-man-hinh-2022-10-15-200941-1665839386.png.webp" width="36" height="62" alt="hinh-anh-luyen-tap-chung-5-1580-3" title="hinh-anh-luyen-tap-chung-5-1580-3" loading="lazy"></h3> <p>280 + 300 ? 280 + 30</p> <p>750 + 40 ? 40 + 750</p> <p>640 + 400 ? 460 - 400</p> <p>900 - 80 ? 960 - 80</p> <h3 id="5nbsp">5.&nbsp;</h3> <p>Quãng đường từ Thành Phố Hồ Chí Minh đi Bạc Liêu dài 288km. Quãng đường từ Thành phố Hồ Chí Minh đi Vĩnh Long dài 134 km. Hỏi quãng đường nào dài hơn bao nhiêu ki-lô- mét?</p> <h3 id="6">6.</h3> <p>Mỗi ngày anh Nam đều tập thể dục bằng cách chạy bộ theo con đường như sơ đồ dưới đây. Nếu chạy 2 vòng thì anh Nam đã chạy được tất cả bao nhiêu ki-lô-mét?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-15-201435-1665839682.png.webp" width="499" height="393" alt="hinh-anh-luyen-tap-chung-5-1580-4" title="hinh-anh-luyen-tap-chung-5-1580-4" loading="lazy"></p>