问题 解答题
算一算.
21.36÷0.8-12.97.28+3.2÷2.55.6×13-3×5.6
10.8×0.8÷0.27[48-(2.48-1.28)]÷1.20.125×[(2.8+6.8)÷2.4].
答案

(1)21.36÷0.8-12.9

=26.7-12.9

=13.8;

(2)7.28+3.2÷2.5

=7.28+1.28

=8.56;

(3)5.6×13-3×5.6

=5.6×(13-3)

=5.6×10

=56;

(4)10.8×0.8÷0.27

=8.64÷0.27

=32;

(5)[48-(2.48-1.28)]÷1.2

=[48-1.2]÷1.2

=46.8÷1.2

=39;

(6)0.125×[(2.8+6.8)÷2.4]

=0.125×[9.6÷2.4]

=0.125×4

=0.5.

单项选择题 A1/A2型题
单项选择题