文档介绍：第 1 页
分数加减法专项练****100题〔有答案〕
4,
5,
6,
7,
8,
9,
10
101,
102, x+3=
103, x－7=4
第 4 页
分数加减法练****100题参考答案：
第 6 页
=1
3, =
4, =1
5, =
6, =
7, =
第 6 页
8, =
9, =
10, =1
11, =
12, =
13, =6
14, =5
15, =2
16, =
17, =2++3+-1-
=2+3-1++-=4++-=3
18, =3++11＋ =14
19, =
20, = 3 +-1=3
21, 1- － =1- 〔+=0
22, +－=+〔－ 〕=
23, ++ =+〔+ 〕=1
24, －〔－〕=－+=
25, +++ =〔+〕+〔+ 〕=1
26, ++=
－＋=
28, 4＋8＋3
= 4＋3＋8=8+8=16
29, 6－1－3=
30, ＋1－ =2
31, 15－5＋ =10
32, －3－2－1
=-〔3+2+1〕
33, 10－(2＋)
=10－2- =8-=
第 2 页
10－3
=10－〔3+〕=10
-4=5
－+=
36, 57+3－4= 55
37, 24－15+6=15
38, 15－7= 15－(7+)
=15－10=5
+(1－1)= +==
40, 4－(－3) =-(-)=
41, 17－(5＋) =7
42, 5+6+3+ =(5+3)+(6)=9+9=18
43, －(+3)－
=()-(3+)=14- 4=10
44, ＋(7－)－5 =＋7－－5
=－＋7－5=2
45,