题目内容
740-60=
[ ]
A.970 |
B.680 |
C.640 |
D.170 |
答案:B
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带★的要验算
496×8= | 505×6= | 740×7= |
60÷9= | ★97+638= | ★903-345= |
题目内容
740-60=
[ ]
A.970 |
B.680 |
C.640 |
D.170 |
496×8= | 505×6= | 740×7= |
60÷9= | ★97+638= | ★903-345= |