问题
解答题
用你喜欢的方法计算.
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答案
①0.46×101,
=0.46×(100+1),
=46+0.46,
=46.46;
②1.25×0.25×3.2,
=1.25×0.25×0.8×4,
=(1.25×0.8)×(0.25×4),
=1×1,
=1;
③4.56×9+4.56,
=4.56×(9+1),
=4.56×10,
=45.6;
④100.1×101-100.1,
=100.1×(101-1),
=100.1×100,
=10010.