看图列式.
(1)
|
□×□ =□ |
□×□ =□ |
|
□÷□ =□ |
□÷□ =□ |
口诀:
_______________________(2)
|
□×□ =□ |
□×□ =□ |
|
□÷□ =□ |
□÷□ =□ |
口诀:
_______________________选择适当的运算符号.
[ ]
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(1)5 ○4=20 |
(2)4 ○4=16 |
(3)1 ○1=1 |
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(4)9 ○3=3 |
(5)6 ○3=2 |
(6)5 ○5=0 |
|||
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(7)6 ○6=12 |
(8)12 ○4=3 |
(9)6 ○3=18 |
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A .+ |
B .- |
C .× |
D .÷ |
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你能画△表示出下面的乘法算式吗?试试看!
|
2 ×2 |
△△ △△ |
|
(1)3 ×5 |
________________ |
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(2)4 ×4 |
________________ |
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(3)3 ×2 |
________________ |