Toán 1- Bài 31

<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>

Ě 6 trừ 5 bằng 1, viết 1.
_{Ě Hạ 7 , viết 7.}

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<span class='text_page_counter'>(4)</span><div class='page_container' data-page=4>

Ě 4 trừ 4 bằng 0, viết 0.
_{Ě Hạ 3, viết 3.}

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<span class='text_page_counter'>(5)</span><div class='page_container' data-page=5>

5

33

65

73

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<span class='text_page_counter'>(6)</span><div class='page_container' data-page=6></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></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>

<b>17</b> <b>16</b> <b>15</b>

<b>13</b> <b>12</b>

12

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<span class='text_page_counter'>(11)</span><div class='page_container' data-page=11>

<b>Đ</b>

<b>Đ</b>

<b>s</b>

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<span class='text_page_counter'>(12)</span><div class='page_container' data-page=12>

<b>70</b>

<b>95</b>

<b>61</b>
<b>95</b>

<b>63</b>

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<span class='text_page_counter'>(14)</span><div class='page_container' data-page=14></div>
<span class='text_page_counter'>(15)</span><div class='page_container' data-page=15></div>
<span class='text_page_counter'>(16)</span><div class='page_container' data-page=16></div>
<span class='text_page_counter'>(17)</span><div class='page_container' data-page=17>

Q123

<b>57</b>

<b>53</b>

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<span class='text_page_counter'>(18)</span><div class='page_container' data-page=18>

<b>57</b>

<b>57</b>

<b>53</b>

<b>55</b>

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