问题 解答题
直接写出得数.
8-5.3=
17.2+8=
1
5
=
75×10%=
1
2
1
3
=
0.52=2÷0.4=1.25×
2
5
×8=
12×(
1
3
×
1
4
)=
1
2
×
1
3
÷
1
2
×
1
3
=
答案

8-5.3=2.7,17.2+8=25.2,
1
5
=10,
75×10%=7.5,
1
2
1
3
=
3
2
0.52=0.25,2÷0.4=5,1.25×
2
5
×8=4,
12×(
1
3
×
1
4
)=1,
1
2
×
1
3
÷
1
2
×
1
3
=
1
9

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