题目内容

比
4
5
米长
3
20
米的是______米．
4
5
+
3
20
，
=
16
20
+
3
20
，
=
19
20
（米）．
故答案为：
19
20
．
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相关题目
直接写出得数．
1
4
+
1
3
=
3
5
+
7
10
=
7
9
-
1
3
=
1
3
+
1
5
=
1
5
+
1
5
=
7
8
-
5
8
=
1
10
-
1
20
=
5
14
+
7
42
=
直接写出得数．
1-
2
3
=
4
7
+
3
7
=
1
4
+
1
4
+
3
4
=		23=52=x?x?x=
4
5
+
2
5
=		a×8×b=
5
12
+
2
12
=		1-
2
3
-
1
3
=
7
9
-
5
9
=		4×3×25=
直接写出得数．
1
2
+
1
4
=		6-
2
5
=
1
3
+
2
7
=
1
3
-
1
3
=
1
12
+
1
4
=		5-
5
9
=
9
16
-
3
8
=		1
3
8
-
3
8
=
直接写出得数．
3
7
+
1
7
=

3
4
-
1
4
=

1
5
+
1
6
=

1-
3
8
=
1
2
+
3
8
=
5
6
-
1
3
=
2
9
+8=
3
11
-
3
11
=
2
3
+
4
5
+
1
3
=		1-
4
5
-
1
5
=
计算．
1
6
+
1
8
+
1
24
=
1-
1
14
-
3
7
=
1
4
+
7
20
-
3
20
=
8
15
+
4
15
-
7
15
=
2
5
+
3
5
-
2
5
+
3
5
=0______．
直接写出得数．
4
11
+
7
11
=
2
5
+
1
4
=		7-
1
4
=
1
2
+
5
6
=
直接写出得数
5
8
-
3
8
=
3
7
+
4
7
=
5
6
-
1
2
=
1-
7
9
=
1
5
+
1
6
=
3
4
+
2
3
=

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