问题 解答题

8.4÷0.6+8.4÷0.4

(1+1÷1.6)+(2+5÷1.6)+(3+10÷1.6)

答案

(1)8.4÷0.6+8.4÷0.4,

=14+21,

=35;

(2)(1+1÷1.6)+(2+5÷1.6)+(3+10÷1.6),

=(1+0.625)+(2+3.125)+(3+6.25),

=(1+2+3)+(0.625+3.125+6.25),

=6+(3.75+6.25),

=6+10,

=16.

选择题
单项选择题 A1/A2型题