问题 解答题
2.2+8=
1
3
×
1
2
=
0.25×
1
3
×4=
15+5÷0.2=
4.38-3.42+5.62-2.08=125÷
1
8
=
1÷25%=
1
87
=
2-
8
15
=
32×1.25×2.5=
答案

2.2+8=10.2;
1
3
×
1
2
=7.5;
0.25×
1
3
×4=
1
3
15+5÷0.2=40;
4.38-3.42+5.62-2.08=4.5;125÷
1
8
=1000;
1÷25%=4;
1
87
=0;
2-
8
15
=1
7
15
32×1.25×2.5=100.
故答案依次为:10.2,7.5,
1
3
,40,4.5,1000,4,0,1
7
15
,100.

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