分数加减混合运算习题.docx

6 | —
+
9 | 2 +
4 | 3 +
00 I 7
1
9
7
9 | 2
+
1
II
斗
।
4 | — 11
2 | — 11
7 | — 11
00 | 3 11
9
2
！
9 6 | —
+
9 | 2 +
4 | 3 +
00 I 7
1
9
7
9 | 2
+
1
II
斗
।
4 | — 11
2 | — 11
7 | — 11
00 | 3 11
9
2
！
9 | 5
11
1
II
II
7 | 5
II
7 | 6
II
4 | -
II
5 | 4
5
1
II
7 | 2
+
II
1
1
+
+
+
+
II
+
II
5 I —
3 | 2
00 1 3
5 1 3
5
3
7 | 5
2 II
II
II
II
II
1
II
7
1
O |3
7 | 4
5 I 3
00 1 5
। II
1
7 | 5
+
1
6 | —
1
5 1 3
、
+
00 1 —
■ ■
।
II
4 1 —
II
II
2
9
II
5 1 —
II
11
5 1 —
00 1 5
1
6 | 5
+
7 | 3
1
00 1 3
I
+
+
1
11
十
9 | —
00 1 — II
3 1 —
II
5
3
6 | — |
II
SIS
II 3 1 —
1
1 1
00 | 7
I
2 1 — +
7
1
4
S 7
1
1
1
5 I —
1
3 | —
II
5 1 —
II
6 1 5
II
II
7 | —
O -
II
+
II
3 +。= 2 + 1
_1
1212 3
1
-=+=+=+=-
5
10
£+1
13
13 8
12
12
15
11
3+£ =
1616
=7+5=5-
113
23
24
3
二 +-=-+= 8
+-+)+++ ++10--
。14
12
5 + 1_2
414 4
9+
(『3)6—
-5)
5-(
1+1)3+4+51
8 4 8 7 8 6
-+25--+- 2-( 2- 1)
77 8
5-9-I+-
+++ (一)
2+(1
32
1)2+1+
453
7+
11
11
13
13
1-
13
15
12
(--)
3 5
1—=++=5
+1
5
15 11
15
7 15
15
18
2— ( 十 ) 15-5 + 71- ( 3-1 ) - ( +)