问题 解答题
脱式计算,能简便的要简便.
1.25×9.76×803.2×2.523.6×99+23.6
36.7+63.3×2.454.3÷4÷2.50.75×18÷0.15.
答案

(1)1.25×9.76×80,

=1.25×80×9.76,

=100×9.76,

=976;

(2)3.2×2.5,

=0.8×4×2.5,

=0.8×(4×2.5),

=0.8×10,

=8;

(3)23.6×99+23.6,

=23.6×(99+1),

=23.6×100,

=2360;

(4)36.7+63.3×2.4,

=36.7+151.92,

=188.62;

(5)54.3÷4÷2.5,

=54.3÷(4×2.5),

=54.3÷10,

=5.43;

(6)0.75×18÷0.15,

=0.75÷0.15×18,

=5×18,

=90.

单项选择题
单项选择题