题目内容

（7－1.2÷0.48）×8.8＝

[　　]

A．0.4

B．4.5

C．1.66

D．39.6

答案：D
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直接写得数．
1-0.25=		 3.4+1.6= 4.3-0.8= 2.7+8.4=
0.07×3= 0.8×1.25= 1.2×0.4= 0.5×0.9=
我会巧算．
1.2×0.4+1.3×0.4 （1.25+0.36）×0.2 7.2×0.3+28×0.03 0.25×0.56×0.4
8×（2.5+0.125） 0.25×0.56×0.4 32.8+5.6+7.2 75.2-66.9-5.2．
2.3×0.4= 7.2÷0.9= 3.2+0.25×4=
0.25×3= 4.8÷0.04= 58-17.4-12.6=
6.2×3.9≈ 3.98×0.52≈ 7.1×5.03≈
28.3÷7.08≈ 12.2÷0.4≈ 56÷7.12≈
口算
0.4×0.02= 1.23÷3= 2.4×2.5= 16÷1.6= 0.9÷0.01=
7÷0.25= 99×0.25= 3.5+7.6= 1.2×0.4+0.4×1.3= 4×（1.5+0.25）=
直接写得数：
0.06×0.25=		 0.8×1.25= 10-0.01= 8.1÷0.03=
3×0.2×0.5= 0.25×16= 0.35÷0.7= 8.4÷0.2+1.6×0.21=
7.2×0.3+2.8×0.3= 1.2×0.4+1.3×0.4=

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