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.