问题 解答题
递等式计算.(能简算的要简算)
9.6÷0.4×0.25
29.7÷(5.85÷0.65)
7.4×9.93.84-2.7×0.64
8.68-8.68÷0.56×0.54.7×4.7+4.7+4.3×4.7.
答案

(1)9.6÷0.4×0.25,

=24×0.25,

=6;

(2)29.7÷(5.85÷0.65),

=29.7÷9,

=3.3;

(3)7.4×9.9,

=7.4×(10-0.1),

=7.4×10-7.4×0.1,

=74-0.74,

=73.26;

(4)3.84-2.7×0.64,

=3.84-1.728,

=2.112;

(5)8.68-8.68÷0.56×0.5,

=8.68-15.5×0.5,

=8.68-7.75,

=0.93;

(6)4.7×4.7+4.7+4.3×4.7,

=4.7×(4.7+4.3+1),

=4.7×10,

=47.

单项选择题
单项选择题