问题 解答题
直接写得数.
2-
1
2
=
352+198=
1
5
+
1
3
=
1.03+0.07=32÷1000=
5
6
×
8
15
=
4
9
=
0.7:0.25=
答案

2-
1
2
=1
1
2
352+198=550,
1
5
+
1
3
=
8
15
1.03+0.07=1.1,32÷1000=0.032,
5
6
×
8
15
=
4
9
4
9
=
9
4
0.7:0.25=2.8.
故答案为:1
1
2
;550;
8
15
;1.1;0.032;
4
9
9
4
;2.8

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