问题
解答题
简便运算.
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答案
(1)3.1×2.5×4
=3.1×(2.5×4)
=3.1×10
=31;
(2)5.3÷0.25÷4
=5.3÷(0.25×4)
=5.3÷1
=5.3;
(3)5.2×0.5×0.2
=5.2×(0.5×0.2)
=5.2×0.1
=0.52.
简便运算.
|
(1)3.1×2.5×4
=3.1×(2.5×4)
=3.1×10
=31;
(2)5.3÷0.25÷4
=5.3÷(0.25×4)
=5.3÷1
=5.3;
(3)5.2×0.5×0.2
=5.2×(0.5×0.2)
=5.2×0.1
=0.52.