问题 解答题
直接写出得数
(1)3.57+4.3=
(2)1÷
10
3
=
(3)0.18÷0.15×0=(4)
3
5
÷3×
3
5
÷3=
(5)0.74×100=(6)
6
7
+
1
4
=
(7)
3
8
-
1
3
+
2
3
=
(8)6+(
1
12
+2)=
(9)
5
7
÷
5
9
×
9
5
=
(10)15×(
1
3
+
1
5
)=.
答案

(1)3.57+4.3=7.87;(2)1÷
10
3
=0.3;
(3)0.18÷0.15×0=0;(4)
3
5
÷3×
3
5
÷3=0.04;
(5)0.74×100=74;(6)
6
7
+
1
4
=1
3
28
(7)
3
8
-
1
3
+
2
3
=
17
24
(8)6+(
1
12
+2)=8
1
12
(9)
5
7
÷
5
9
×
9
5
=2
11
35
(10)15×(
1
3
+
1
5
)=8.
故答案依次为:7.87,0.3,0,0.04,74,1
3
28
17
24
8
1
12
2
11
35
,8.

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