<span class='text_page_counter'>(1)</span><div class='page_container' data-page=1></div>
<span class='text_page_counter'>(2)</span><div class='page_container' data-page=2></div>
<span class='text_page_counter'>(3)</span><div class='page_container' data-page=3>
<b>Ong</b>
<b>non</b>
<b>việc</b>
<b>học</b>
</div>
<span class='text_page_counter'>(4)</span><div class='page_container' data-page=4>
<b>16 - 2 = </b>
</div>
<span class='text_page_counter'>(5)</span><div class='page_container' data-page=5>
<b>16 - 4 = </b>
</div>
<span class='text_page_counter'>(6)</span><div class='page_container' data-page=6>
<b>12 - 3 =</b>
</div>
<span class='text_page_counter'>(7)</span><div class='page_container' data-page=7>
<b>LUYỆN TẬP</b>
</div>
<span class='text_page_counter'>(8)</span><div class='page_container' data-page=8></div>
<span class='text_page_counter'>(9)</span><div class='page_container' data-page=9></div>
<span class='text_page_counter'>(10)</span><div class='page_container' data-page=10></div>
<span class='text_page_counter'>(11)</span><div class='page_container' data-page=11></div>
<span class='text_page_counter'>(12)</span><div class='page_container' data-page=12></div>
<span class='text_page_counter'>(13)</span><div class='page_container' data-page=13></div>
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