题目内容
72-12×2=
[ ]
A.70
B.1
C.64
D.48
答案:D
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(72-48)÷2=
[ ]
A.12 |
B.10 |
C.21 |
D.42 |
(72-48)÷2=
[
]
A .12 |
B .10 |
C .21 |
D .42 |
72-12×2=
[
]
A .70 |
B .1 |
C .64 |
D .48 |