Toan Phep cong trong pham vi 4

<span class='text_page_counter'>(1)</span>M«n : To¸n Lớp : 1 A Gi¸o viªn thÓ hiÖn: NguyÔn ThÞ Thanh Hång Ngày dạy :. / 10 / 2009.

<span class='text_page_counter'>(2)</span> Toán Bµi cò: 2+1= 3 1+2= 3. 2 +. 1 +. 1. 1. 3. 2.

<span class='text_page_counter'>(3)</span> 3+1=4. 2+2=4. 3+1=4 2+2=4 1+3=4. 1+3=4.

<span class='text_page_counter'>(4)</span> 3. 1. 4. 4. 1. 3. VËy:. 3+1=1+3.

<span class='text_page_counter'>(5)</span> 1 + 3 =… 4 ... 3 + 1 =… 4 ... 1 + 1 =… 2 ... 2 + 2 =… 4 ... 2 + 1 =… 3 ... 1 + 2 =… 3 ...

<span class='text_page_counter'>(6)</span> 2 + 2. 3 + 1. 1 + 2. 1 + 3. 4. 4. 3. 4.

<span class='text_page_counter'>(7)</span> Bän cËu tí ®a ng ® đấy , nh îi s¾p anh vµo lªn líp tÝnh häc vi råi đấy !. ê h C í t i! ví. 3 + 1 = 4.

<span class='text_page_counter'>(8)</span> 4 = 1 + …….. 3. 4 = 2 + …….. 2. 3 + 1 = …….. 4.

<span class='text_page_counter'>(9)</span>

<span class='text_page_counter'>(10)</span>