问题 解答题
直接写出得数.
86+99=90-21=4÷8=5×24=
8.3-0.8=0.7+1.9=0.5×0.9=1.8÷6=
1
5
+
1
6
=
1
3
-
1
9
=
5
12
÷
2
3
30×
5
6
=
答案

86+99=185,90-21=69,4÷8=
1
2
5×24=120,
8.3-0.8=7.5,0.7+1.9=2.6,0.5×0.9=0.45,1.8÷6=0.3,
1
5
+
1
6
=
11
30
1
3
-
1
9
=
2
9
5
12
÷
2
3
=
5
8
30×
5
6
=25.

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