初一100道数学计算题及答案
别妄想泡我
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2021年01月18日 02:21
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1.25
×(
8+10
)
=1.25
×
8+1.25
×
10
=10+12.5=22.5
9123-
(
123+8.8
)
=9123-123-8.8
=9000-8.8
=8991.2
1.24
×
8.3+8.3
×
1.76
=8.3
×(
1.24+1.76)
=8.3
×
3=24.9
9999
×
1001
=9999
×(
1000+1
)
=9999
×
1000+9999
×
1
=10008999
14.8
×
6.3-6.3
×
6. 5
+
8.3
×
3.7
=
(
14.8-6.5< br>)×
6.3
+
8.3
×
3.7
=8.3
×
6.3+8.3
×
3.7
8.3
×(
6.3
+
3.7
)
=8.3
×
10
=83
1.24+0.78+8.76
=
(
1.24+8.76
)
+0.78
=10+0.78
=10.78
933-157-43
=933-
(
157+43
)
=933-200
=733
4821-998
=4821-1000+2
=3823
I32
×
125
×
25
=4
×
8
×
125
×
25
=
(
4
×
25
)×(
8
×
125
)
=100
×
1000
=100000
9048
÷
268
=
(
2600+2600+2600+1248
)÷
26
=2600
÷
26+2600
÷
26+2600
÷
26+1 248
÷
269
=100+100+100+48
=348
2881
÷
43
=
(
1290+1591
)÷
434
=1290
÷
43+1591
÷
43
=30+37 3.2
×
42.3
×
3.75-12.5
×
0.423
×
16
=3.2
×
42.3
×
3.75-1.2 5
×
42.3
×
1.6
=42.3
×
(3.2< br>×
3.75-1.25
×
1.6)
=42.3
×
( 4
×
0.8
×
3.75-1.25
×
4
×
0.4)
=42.3
×
(4
×
0.4
×
2
×
3.75-1.25
×
4
×
0.4)
=42.3
×
(4x0.4x7.5-1.25x4x0.4)
=42.3
×
[4
×
0.4
×
(7.5-1.25)]
=42.3
×
[4
×
0.4
×
6.25]
=42.3
×
(4
×
2.5)
=4237
1.8+18
÷
1.5-0.5
×
0.3
=1.8+12-0.15
=13.8-0.15
=13.65
6.5
×
8+3.5
×
8-47
=52+28-47
=80-47
(80-9.8)
×
5
分之
2-1.32
=70.2X2/5-1.32
=28.08-1.32
=26.76
8
×
7
分之
4
÷
[1
÷
(3.2-2.9 5)]
=8
×
4/7
÷
[1
÷
0.25]
=8
×
4/7
÷
4
=8/7
2700
×(
506
-
499
)÷
900
=2700
×
7
÷
900
=18900
÷
900
=21
33.02
-(148.4
-
90.85
)÷
2.5
=33.02
-
57.55
÷
2.5
=33.02
-
23.02
=10
(
1
÷
1
-
1
)÷
5.1
=
(
1
-
1
)÷
5.1
=0
÷
5.1
=0
18.1
+(
3
-
0.299
÷
0.23
)×
1
=18.1
+
1.7
×
1
=18.1
+
1.7
=19.8
[-18]+29+[-52]+60= 19
[-3]+[-2]+[-1]+0+1+2= -3
[-301]+125+301+[-75]= 50
[-1]+[-1/2]+3/4+[-1/4]= -1
[-7/2]+5/6+[-0.5]+4/5+19/6= 1.25
[-26.54]+[-6.14]+18.54+6.14= -8
1.125+[-17/5]+[-1/8]+[-0.6]= -3
[-98+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2)
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
-3x+2y-5x-7y
1437
×
27
+
27
×
563
〔
75-
(
12+18
)
〕÷
15
2160
÷〔
(
83-79
)×
18
〕
280
+
840
÷
24
×
5
325
÷
13
×
(266
-
250) 85
×
(95
-
1440
÷
24)
58870
÷
(105
+
20
×
2) 1437
×
27
+
27
×
563
81432
÷
(13
×
52
+
78) [37.85-
(
7.85+6.4
)
]
×
30
156
×
[(17.7-7.2)
÷
3]
(
947
-
599
)+
76
×
64
36
×
(913
-
276
÷
23) [192
-(
54
+
38
)
]
×
67
[
(
7.1-5.6
)×
0.9-1.15]
÷
2 .5 81432
÷
(13
×
52
+
78)
5 .4
÷
[2.6
×(
3.7-2.9
)
+0.62]
(
947
-
599
)+
76
×
64
60
-
(9.5
+
28.9)]
÷
0.18
2.881
÷
0.43
-
0.24
×
3.5 20
×
[(2.44
-
1.8)
÷
0.4
+
0 .15] 28-(3.4 1.25
×
2.4) 0.8
×〔
15.5-(3.21 5.79)
〕
(
31.8 3.2
×
4
)
÷
5 194
-
64.8
÷
1.8
×
0.9 36.72
÷
4.25
×
9.9 3.416
÷
(
0.016
×
35
)
0.8
×
[(10
-
6.76)
÷
1.2] < br>(
136+64
)×(
65-345
÷
23
)
(6.8-6.8
×
0.55)
÷
8.5
0.12
×
4.8
÷
0.12
×
4.8
(
58+37
)÷(
64-9
×
5
)
812-700
÷(
9+31
×
11
)
(
3.2
×
1.5+2.5
)÷
1.6
85+14
×(
14+208
÷
26
)
120-36
×
4
÷
18+35
(
284+1 6
)×(
512-8208
÷
18
)
9.72
×
1.6-18.305
÷
7
4/7
÷
[1/3
×(
3/5-3/10
)
]
(
4/5+1/4
)÷
7/3+7/10
12.78
-
0
÷(
13.4
+
156.6
)
37.812-700
÷(
9+31
×
11
)
(
136+64
)×(< br>65-345
÷
23
)
3.2
×(
1.5+2.5
)÷
1.6
85+14×(
14+208
÷
26
)
(
58+37
)÷ (
64-9
×
5
)
(6.8-6.8
×
0.55)
÷
8.5
(
28 4+16
)×(
512-8208
÷
18
)
0.12
×
4.8
÷
0.12
×
4.8
(
3.2
×
1.5+2.5
)÷
1.6
120-36
×
4
÷
18+35 10.15-10.75
×
0.4-5.7
5.8
×(
3.87 -0.13
)
+4.2
×
3.74 347+45
×
2-4160
÷
52
32.52-
(< br>6+9.728
÷
3.2
)×
2.5 87
(
58+37
)÷(
64-9
×
5
)
[
(
7.1-5.6
)×
0.9-1.15]
÷
2.5
(
3.2
×
1.5+2.5
)÷
1.6
5.4
÷
[2.6
×(
3.7-2.9
)
+0.62] 12
×
6
÷(
12-7.2
)
-6
3.2
×
6+
(
1.5+2.5
)÷
1.6
(
3.2
×
1.5+2.5
)÷
1.6
5.8
×(
3.87-0.13
)
+4.2
×
3.74
33.02
-(
148.4
-
90.85
)÷
2.5
1)23+(-73)
(2)(-84)+(-49)
(3)7+(-2.04)
(4)4.23+(-7.57)
(5)(-7/3)+(-7/6)
(6)9/4+(-3/2)
(7)3.75+(2.25)+5/4
(8)-3.75+(+5/4)+(-1.5)
(9)(-17/4)+(-10/3)+(+13/3)+(11/3)
(10)(-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4)
(11)(+1.3)-(+17/7)
(12)(-2)-(+2/3)
(13)|(-7.2)-(-6.3)+(1.1)|
(14)|(-5/4)-(-3/4)|-|1-5/4-|-3/4|)
(15)(-2/199)*(-7/6-3/2+8/3)
(16)4a)*(-3b)*(5c)*1/6
1. 3/7
×
49/9 - 4/3
2. 8/9
×
15/36 + 1/27
3. 12
×
5/6
–
2/9
×
3
4. 8
×
5/4 + 1/4
5. 6
÷
3/8
–
3/8
÷
6
6. 4/7
×
5/9 + 3/7
×
5/9
7. 5/2 -
(
3/2 + 4/5
)
8. 7/8 +
(
1/8 + 1/9
)
9. 9
×
5/6 + 5/6
10. 3/4
×
8/9 - 1/3
0.12
χ
+
1.8
×
0.9=7.2 (9
-
5
χ
)
×
0.3=1.02 6.4
χ
-
χ
=28+4.4
11. 7
×
5/49 + 3/14
12. 6
×(
1/2 + 2/3
)
13. 8
×
4/5 + 8
×
11/5
14. 31
×
5/6
–
5/6
15. 9/7 -
(
2/7
–
10/21
)
16. 5/9
×
18
–
14
×
2/7
17. 4/5
×
25/16 + 2/3
×
3/4
18. 14
×
8/7
–
5/6
×
12/15