<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></div>
<span class='text_page_counter'>(4)</span><div class='page_container' data-page=4></div>
<span class='text_page_counter'>(5)</span><div class='page_container' data-page=5></div>
<span class='text_page_counter'>(6)</span><div class='page_container' data-page=6>
<b>3 – 1 = 2</b>
<b> 3 – 2 = 1</b>
</div>
<span class='text_page_counter'>(7)</span><div class='page_container' data-page=7></div>
<span class='text_page_counter'>(8)</span><div class='page_container' data-page=8>
<b>2</b>
<b>3</b>
<b>1</b>
<b>2 + 1 = 3</b>
<b>3 – 1 = 2</b>
<b>1 + 2 = 3</b>
<b>3 – 2 = 1</b>
<b>2 + 1 = 3</b>
<b>1 + 2 = 3</b>
</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>
<b>Bài 1</b>
<b>Bài 1</b><i><b>: </b><b>: </b></i><b>TínhTính</b>
<i></i>
<b>-2 - 1 = </b>
<b>3 – 1 = </b>
<b>3 – 2 = </b>
<b>3 - 1 =</b>
<b>3 – 2 = </b>
<b>2 – 1 = </b>
<b>1 + 1 =</b>
<b>2 – 1 = </b>
<b>3 – 1 = </b>
<b>1 + 2 =</b>
<b>3 – 2 = </b>
<b>3 – 1 = </b>
<i><b>Bài 1: Tính</b></i>
<i><b>Bài 1: Tính</b></i>
<b>2 - 1 = 1 </b>
<b>3 – 1 = 2</b>
<b>3 – 2 = 1</b>
<b>3 - 1 = 2</b>
<b>3 – 2 = 1 </b>
<b>2 – 1 = 1</b>
<b>1 + 1 = 2</b>
<b>2 – 1 = 1</b>
<b>3 – 1 = 2 </b>
</div>
<span class='text_page_counter'>(13)</span><div class='page_container' data-page=13>
<b>1 + 2 = </b>
<b>3 – 2 =</b>
<b>3 – 1 =</b>
<b>1 + 2 = </b>
<b>3</b>
<b>3 – 2 = </b>
<b>1</b>
</div>
<span class='text_page_counter'>(14)</span><div class='page_container' data-page=14>
<b>2</b>
<b>1</b>
<b></b>
<b>-1</b>
<b>3</b>
<b>2</b>
<b></b>
<b>-1</b>
<b>3</b>
<b>1</b>
<i><b></b></i>
<b>-2</b>
</div>
<span class='text_page_counter'>(15)</span><div class='page_container' data-page=15>
<b>3</b>
<b>-</b>
<b>2</b>
<b>=</b>
<b><sub>1</sub></b>
<b>Bài 3 : Viết phép tính thích hợp</b>
</div>
<span class='text_page_counter'>(16)</span><div class='page_container' data-page=16>
<b>Xin chào</b>
</div>
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