问题
解答题
计算下面各题,注意运用简便方法.
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答案
(1)1.7-36÷30
=1.7-1.2,
=0.5;
(2)1÷[(1.1-0.7)×0.2]
=1÷[0.4×0.2],
=1÷0.08,
=12.5;
(3)7.3×7.3+2.7×7.3
=(7.3+2.7)×7.3,
=10×7.3,
=73;
(4)4.78-0.96-0.04
=4.78-(0.96+0.04),
=4.78-1,
=3.78;
(5)930÷5÷0.6
=930÷(5×0.6),
=930÷3,
=310.