题目内容
43+3×7=
[ ]
A.7
B.21
C.64
D.70
答案:C
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解方程.
x+15.7=43.2
x=
[ ]
A.0.9 |
B.27.5 |
C.0.05 |
D.2.3 |
43
+3×7=[
]
A .7 |
B .21 |
C .64 |
D .70 |
题目内容
43+3×7=
[ ]
解方程.
x+15.7=43.2
x=
[ ]
A.0.9 |
B.27.5 |
C.0.05 |
D.2.3 |
43
+3×7=[
]
A .7 |
B .21 |
C .64 |
D .70 |