问题 解答题
直接写出得数.
0.57+0.43=
4.13-1.3=2.5×28=
7.2÷0.6=0.52=3-1
5
6
=
1
3
+
1
6
)=
15÷
1
15
×
1
15
=
5
4
×8+8×
1
4
=
答案

0.57+0.43=1,4.13-1.3=2.83,2.5×28=70,
7.2÷0.6=12,0.52=0.25,3-1
5
6
=1
1
6
1
3
+
1
6
=
1
2
15÷
1
15
×
1
15
=15,
5
4
×8+8×
1
4
=12.

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