问题
解答题
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答案
(1)99×0.625+0.625,
=(99+1)×0.625,
=100×0.625,
=62.5;
(2)(53.76-17.49)÷1.8,
=36.27÷1.8,
=20.15;
(3)(0.8×7+4.56÷1.9)×12.5,
=(5.6+2.4)×12.5,
=8×12.5,
=100;
(4)15.73-(2.17+0.73)-1.83,
=15.73-2.17-0.73-1.83,
=(15.73-0.73)-(2.17+1.83),
=15-4,
=11.