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</div><p></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b15-h2-1666289566.jpg.webp" width="245" height="237" alt="hinh-anh-xem-dong-ho-1749-1" title="hinh-anh-xem-dong-ho-1749-1" loading="lazy"></p> <p>Đếm thêm 5, theo chiều mũi tên để biết kim phút chỉ bao nhiêu phút.</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b15-h3-1666289649.jpg.webp" width="545" height="178" alt="hinh-anh-xem-dong-ho-1749-2" title="hinh-anh-xem-dong-ho-1749-2" loading="lazy"></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b15-h4-1666289666.jpg.webp" width="549" height="159" alt="hinh-anh-xem-dong-ho-1749-3" title="hinh-anh-xem-dong-ho-1749-3" loading="lazy"></p> <h3 id="1-moi-dong-ho-chi-may-gio">1. Mỗi đồng hồ chỉ mấy giờ?</h3> <p><strong>Mẫu:&nbsp;</strong></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b15-h5-1666289784.jpg.webp" width="137" height="137" alt="hinh-anh-xem-dong-ho-1749-4" title="hinh-anh-xem-dong-ho-1749-4" loading="lazy"></p> <p style="text-align: center;">9 giờ 40 phút hay 10 giờ kém 20 phút.</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b15-h6-1666289831.jpg.webp" width="353" height="238" alt="hinh-anh-xem-dong-ho-1749-5" title="hinh-anh-xem-dong-ho-1749-5" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div><p></p> <h3 id="2-xoay-kim-dong-ho-de-dong-ho-chi">2. Xoay kim đồng hồ để đồng hồ chỉ:</h3> <p>a) <strong>3</strong> giờ <strong>25</strong> phút</p> <p>b) <strong>7</strong> giờ <strong>50</strong> phút</p> <p>c) <strong>11</strong> giờ kém <strong>20</strong> phút</p> <h3 id="bagravei-tap-1-chon-dong-ho-phugrave-hop-voi-caacutech-doc">Bài tập 1: Chọn đồng hồ phù hợp với cách đọc.</h3> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b15-h7-1666289985.jpg.webp" width="159" height="274" alt="hinh-anh-xem-dong-ho-1749-6" title="hinh-anh-xem-dong-ho-1749-6" loading="lazy"> <img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b15-h8-1666289996.jpg.webp" width="159" height="299" alt="hinh-anh-xem-dong-ho-1749-7" title="hinh-anh-xem-dong-ho-1749-7" loading="lazy"></p> <p style="text-align: center;"><strong>3</strong> giờ kém <strong>15 </strong>phút</p> <p style="text-align: center;"><strong>3 </strong>giờ <strong>15 </strong>phút</p> <p style="text-align: center;"><strong>10 </strong>giờ <strong>5 </strong>phút</p> <p style="text-align: center;"><strong>10 </strong>giờ <strong>25 </strong>phút</p> <h3 id="bagravei-tap-2">Bài tập 2:</h3> <p><strong>Mỗi đồng hồ chỉ mấy giờ?</strong></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b15-h9-1666290152.jpg.webp" width="582" height="71" alt="hinh-anh-xem-dong-ho-1749-8" title="hinh-anh-xem-dong-ho-1749-8" loading="lazy"></p> <h3 id="bagravei-tap-3nbsp">Bài tập 3:&nbsp;</h3> <p><strong>Vào một buổi tối, hai đồng hồ nào chỉ cùng thời gian?</strong></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b15-h10-1666290221.jpg.webp" width="381" height="162" alt="hinh-anh-xem-dong-ho-1749-9" title="hinh-anh-xem-dong-ho-1749-9" loading="lazy"></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b15-h11-1666290235.jpg.webp" width="351" height="204" alt="hinh-anh-xem-dong-ho-1749-10" title="hinh-anh-xem-dong-ho-1749-10" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div><p></p> <h3 id="bagravei-tap-4-so">Bài tập 4: Số ?</h3> <p>Buổi sáng 20 tháng 11 ở lớp em.</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b15-h12-1666290319.jpg.webp" width="562" height="176" alt="hinh-anh-xem-dong-ho-1749-11" title="hinh-anh-xem-dong-ho-1749-11" loading="lazy"></p> <p>a) Chúng em bắt đầu liên hoan văn nghệ vào lúc .?. giờ .?. phút và kết thúc lúc .?. giờ kém .?. phút.</p> <p>b) Buổi liên hoan văn nghệ kéo dài trong .?. phút.</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b15-h13-1666290521.jpg.webp" width="293" height="125" alt="hinh-anh-xem-dong-ho-1749-12" title="hinh-anh-xem-dong-ho-1749-12" loading="lazy"></p>