小学毕业小升初计算题——解方程.doc
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小学毕业计算题
方程
2421
(1) 3.5X+1.8=12.3 (5)
X+
5
X=21 (6)
5
X+
5
X=
2
23
(7)
3.6X÷2=2.16 (8) X+
7
X=
4
(2) 0.8X-4=1.6
(3) 5X÷2=10 (4)
X
23
(10) X-
5
=
10
(11) 2X
714
(13)
10
X=
25
(14)
(16) 180+6X=330 (17) 2.2X
(19) 15X÷2=60 (20) 4X
(22)
5X-X=2.4 (23) 1.5X
23
(25)
2X-
3
X=
4
(26)
(28)1.8χ-χ=2.4
(29)
1
(31)17-5χ=2.4+3
5
(32)
5
(34)12.6×
6
-2χ=8
(35)
2
(37)
3
χ+50%=42 (38)4
1
(40)2χ+4.3×3=14
2
1
(43)3
2
÷
4χ=2.5
23
-0.25X=3 (9)
X-
5
X=
10
932
+7X=
10
(12)
8
+X=
5
135
2
X=
4
(15)
9
X=1
-1=10 (18) X-0.8X=10
+X=3.15 (21)3.4X+1.8=8.6
-X=1
(24) 6.6X-6X=1.8
3
5
χ+2.4χ=6
(27)3.5: χ=5:4.2
10
2.5
x
=
0.8
(30)6×3-1.8χ=7.2
x1.213
4
=
5
(33) χ-
4
χ=
8
x
1.5
311
1.2
=
0.6
(36)
5
×
2
-χ=
5
1
χ-13=31 (39)4.5+8χ=27
2
3213
χ×(1-
8
)=1
3
(42)χ-
4
χ=
8
x
1.523
(44)
0.4
=
6
(45)1.6:χ=
5
:
10
1
(41)
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7
(46)3χ-16×3=102
(47)x:1
9
11
=
20
:
3
(48)4χ+7.1=12.5
1237
(49)χ:0.6=
3
:4
(50)
3
:
7
=
9
:χ (51)
0.3χ-2=9.1
x
0.6
111111
(52)
7
=
3.5
(53)
2
x-
4
=
8
(54) χ:
2
=
4
:
8
1111255
(55)
2
:
χ=
4
:
8
(56)3χ+
4
χ=2
13
(57)
14
:
7
=0.3: χ
1
(58)131-χ=89.2 (59)
3
:0.25=80%:χ
(60)4χ+7.1=12.5
311211233
(61)
4
-
2
χ=
5
(62)
3
χ-
2
χ+
5
=
3
(63)
4
:
5
=χ:12
173
(64)
χ-
2
χ=
10
(65) χ:
4
=12:3
(66)2.4χ-0.45×2=0.3
11
(67)
4
:
8
=χ:0.1
(68)6.3-5χ=4.1 (69)1.25:5=0.75:χ
1331
(70)
2
:χ=
4
:6
(71)
5
×2.5-χ=0.6 (72)
χ-
6
5
χ=
12
116x0.121
(73)
3
:
χ=
5
:
7
(74)
10
=
2
(75)
3
χ-
2
χ+1.2=3.4
415
132
(76)4:6=15:χ
(77)
2
:
4
=χ:
3
(78)
X÷
5
=
28
313
3
X
48
(81)
3X=
8
(79)6X+5 =13.4 (80)
4
277
(82)X÷
7
=
16
(83)X+
8
32
X=
4
(84)
4X-6×
3
=2
16
×
51
32581
123
(85) ÷X= (86)
5
X =
72
(87)
9
X =
6
510
11
6
2613
(88)X÷
35
=
45
×
25
(89)4x-3 ×9
= 29 (90)
2
x +
6
2
x = 4
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321
xx20
2(x2.6)8
4
(91)
10
X-21×
3
=4
(92) (93)
213
(94)6X+5 =13.4
(95) X- X= (96) 4χ-6=38
5310
154
8
31
(97)5X=
19
(98)
21
X=
15
(99)X×
5
=20×
4
3