问题 解答题
直接写得数.
4
9
×3=
1
3
=
1
2
÷
1
3
=
1
3
×2=
100×29%=0.625×0.4=
3
8
÷
3
4
=
1
2
+
1
3
=
2
7
×(
1
4
+
1
3
)=
2
7
×
3
9
÷
2
7
=
答案

(1)

4
9
×3=1
1
3

(2)(2)5÷

1
3
=15;

(3)

1
2
÷
1
3
=1
1
2

(4)

1
3
×2=
2
3

(5)100×29%=29;

(6)0.625×0.4=0.25;

(7)

3
8
÷
3
4
=
1
2
; 

(8)

1
2
+
1
3
=
5
6
; 

(9)

2
7
×(
1
4
+
1
3
)=
1
6

(10)

2
7
×
3
9
÷
2
7
=
1
3

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