问题
解答题
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答案
(1)0.84×1.2=1.008;
0.8 4
×1.2 168
;84 1.008
(2)4.48÷3.2=1.4;
(3)536÷0.4=1340;
(4)0.58×3.2=1.856;
0.5 8
×3.2 116
;174 1.856
(5)7÷0.35=20;
(6)8×0.25×125,
=8×125×0.25,
=1000×0.25,
=250;
(7)0.68+1.8÷5+7.61,
=0.68+0.36+7.61,
=1.04+7.61,
=8.65;
(8)2.43×99+2.43,
=2.43×(99+1),
=2.43×100,
=243;
(9)38.5×7.2+38.5×2.8,
=38.5×(7.2+2.8),
=38.5×10,
=385.