问题 解答题
计算下面各题(能简算的要简算)
1.25×3.2×2.5
1.8×5.6+44×0.183.4×99+3.4
101×8.3-8.3(27÷1.8-11)×2.539.4×[0.96÷(5.4÷0.9)].
答案

(1)1.25×3.2×2.5,

=(1.25×0.8)×(4×2.5),

=1×10,

=10;

(2)1.8×5.6+44×0.18,

=1.8×(5.6+4.4),

=1.8×10,

=18;

(3)3.4×99+3.4,

=3.4×(99+1),

=3.4×100,

=340;

(4)101×8.3-8.3,

=(101-1)×8.3,

=100×8.3,

=830;

(5)(27÷1.8-11)×2.5,

=(15-11)×2.5,

=4×2.5,

=10;

(6)39.4×[0.96÷(5.4÷0.9)],

=39.4×[0.96÷6],

=39.4×0.16,

=6.304.

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