问题 解答题
脱式计算(能简算的要简算)
0.75×4×0.2550+10×9916÷8-0.72
4.536÷0.8÷143×3.6+1.4×106.3×11.
答案

(1)0.75×4×0.25,

=0.75×(4×0.25),

=0.75×1,

=0.75;

(2)50+10×99,

=50+990,

=1040;

(3)16÷8-0.72,

=2-0.72,

=1.23;

(4)4.536÷0.8÷14,

=5.67÷14,

=0.405;

(5)3×3.6+1.4×10,

=10.8+14,

=24.8;

(6)6.3×11,

=6.3×(10+1),

=6.3×10+6.3×1,

=63+6.3,

=69.3.

选择题
单项选择题 A1/A2型题