九年级数学计算题100道?469×12+1492 405×(3213-3189)5000-56×23 125×(97-81)6942+480÷3 304×32-154 20+80÷4-20= 100÷(32-30)×0= 25×4-12×5= 70×〔(42-42)÷18〕= 75×65+75×35= 1、那么,九年级数学计算题100道?一起来了解一下吧。
2100-94+48×54
51+(2304-2042)×23
4215+(4361-716)÷81
(247+18)×27÷25
36-720÷(360÷18)
1080÷(63-54)×80
(528+912)×5-6178
8528÷41×38-904
264+318-8280÷69
(174+209)×26- (9000^0)
814-(278+322)÷15
1406+735×9÷45
3168-7828÷38+504
796-5040÷(630÷7)
285+(3000-372)÷36
1+5/6-19/12
3x(-9)+7x(-9)
(-54)x1/6x(-1/3)
1.18.1+(3-0.299÷0.23)×1
2.(6.8-6.8×0.55)÷8.5
3.0.12× 4.8÷0.12×4.84
3.2×1.5+2.5÷(-1.6)
(-2)×3.2×(1.5+2.5)÷1.6
5.6-1.6÷4+(6.8-9)
5.38+7.85-5.37÷89
6.7.2÷0.8-1.2×5
6-1.19×3-0.43
7.6.5×(4.8-1.2×4)
0.68×1.9+0.32×1.9
8.10.15-10.75×0.4-5.7
9.5.8×(3.87-0.13)
(-8.01)+4.2×3.74
10.32.52-(6+9.728÷3.2)×2.5
11.[(7.1-5.6)×0.9-1.15] ÷2.5
12.5.4÷[2.6×(3.7-2.9)+0.62]
13.12×6÷(12-7.2)-6
14.12×6÷7.2-6
15.33.02-(148.4-90.85)÷2.5
(-5)-252×(-78)
(-6) ×(-2)+3÷(5+50)
7-7+3-6-(-90)
(-8)(-3)×(-8)×25
(7+13) ÷(-616)÷(-28)
(8+14-100-27)÷4
(-15) ÷(-1)-101÷10
16÷0.21×(-8) ×(4.1+5.9)
(-10) ×(-2) ×4÷{-9÷[6+(-5.67)]}
(-18)(-4)2×[8.01×(-3.14)
9-32{-890-[79+8.1] ×9}
(-20)-23+(-9) ×9.42
(-24)3.4×104÷(-5) ×200.96
[-|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) +√9
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2) ×2^7
(5+3/8*8/30/(-2)- √36
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
1+2+3+4+......+100000
1/1+1/2+1/3+......1/50
1+1/2+1/4+1/8+1/16+......1/512
3+9+27+81+243+......9999
1+1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90
8-2×32-(-2×3)2
–12 × (-3)2-(-1/2)2003×(-2)2002÷2/9
(0.5-3/2)÷3/1×[-2-(-3)3]-∣1/8-0.52∣
[-38-(-1)7+(-3)8]×-53
a^3-2b^3+ab(2a-b)-√a-b^2
15*(-8)+2b^2+
(x^2+y^2)^2-4y(x^2+y^2)+4y^2
6-3a^8-(-5^2-6)
(x^2+2x)^2+3(x^2+2x)+x^2+2x+3
(a+1)(a+2)+(2a+1)(a-2)-12
x^2(y+z)^2-2xy(x-z)(y+z)+y^2(x-z)^2
3(a+2)^2+28(a+2)-20
(a+b)^2-(b-c)^2+a^2-c^2
8x(x+1)(x^2+x-1)-2
x^2(x-1)^2-3(x^2-x)-56
14a(a-b)+(a-b)^2
11.-ab(a-b)^+a(b-a)^2
12.3(x+2)-2x=5-4x
13.5(x+2a)-a=2(b-2x)+4a
3.14*3.42 (2)972*3.14*1/4
[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
5+21*8/2-√121-59
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|-5^4)
(1/3+2/3)/1/2-|-9+(-5)|
18-6/(-3)*(-2)-|-9|
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
|-3x+2y-5x-7y|-|-9x+2y|
-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-√64-5^2
-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+√9
-3x+2y-5x-7y+
-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-(-3^2+5^7)
-1+2-3+4-5+6-7+√9
-50-28+(-24)-(-22)
-19.8-(-20.3)-(+20.2)-10.8;
0.25- +(-1 )-(+3 ).
-1-23.33-(+76.76)
1-2*2*2*2-5^2+(6^2-5^2)
(-6-24.3)-(-12+9.1)+(0-2.1)
-1+8-7+5^7-(-5+√9)
125*3+125*5+25*3+25
9999*3+101*11*(101-92)
(23/4-3/4)*(3*6+2)
3/7 × 49/9 - 4/3
8/9 × 15/36 + 1/27
12x*5/6y–2/9y*|3x-2y|
8×5/4+1/4*|-7-8|
6÷ 3/8 – 3/8 ÷6
4/7 × 5/9 + 3/7 × 5/9
5/2 -( 3/2 + 4/5 )
7/8 + ( 1/8 + 1/9 )
9 × 5/6 + 5/6
3/4 × 8/9 - 1/3
7 × 5/49 + 3/14
6 ×( 1/2 + 2/3 )
8 × 4/5 + 8 × 11/5
31 × 5/6 – 5/6
9/7 - ( 2/7 – 10/21 )
5/9 × 18 – 14 × 2/7
4/5 × 25/16 + 2/3 × 3/4
14 × 8/7 – 5/6 × 12/15
17/32 – 3/4 × 9/24
3^45 × 2/9 + 1/3
5/7 × 3/25 + 3/7
3/14 ×2/3 + 1/6
1/5 × 2/3 + 5/6
5/3 × 11/5 + 4/3
9/22+1/11÷1/2-√169
45^8 × 2/3 + 1/3 × 15
7/19 + 12/19 × 5/6
1/4 + 3/4 ÷ 2/3
8/7 × 21/16 + 1/2
101^4×(-1/5–1/5×21)
50+√160÷40^5
120-144÷18+35
347+45×2-4160÷52
37^2(58+37)÷(64-9×5)
95÷(64-45)
178-145÷5×6+42
812-700÷(9+31×11)
85+14×(14+208÷26)
120-36×4÷18+35
(58+37)÷(64-9×5)
(6.8-6.8×0.55)÷8.5
0.12× 4.8÷0.12×4.8
(3.2×1.5+2.5)÷1.6
6-1.6÷4= 5.38+7.85-5.37=
7.2÷0.8-1.2×5= 6-1.19×3-0.43=
6.5×(4.8-1.2×4)=
5.8×(3.87-0.13)+4.2×3.74
32.52-(6+9.728÷3.2)×2.5
[(7.1-5.6)×0.9-1.15] ÷2.5
5.4÷[2.6×(3.7-2.9)+0.62]
12×6÷(12-7.2)-6
12×6÷7.2-6
0.68×1.9+0.32×1.9
58+370)÷(64-45)
420+580-64×21÷28
136+6×(65-345÷23)
15-10.75×0.4-5.7
18.1+(3-0.299÷0.23)×1
(6.8-6.8×0.55)÷8.5
0.12× 4.8÷0.12×4.8
(3.2×1.5+2.5)÷1.6
3.2×6+(1.5+2.5)÷1.6
0.68×1.9+0.32×1.9
10.15-10.75×0.4-5.7
5.8×(3.87-0.13)+4.2×3.74
32.52-(6+9.728÷3.2)×2.5
[(7.1-5.6)×0.9-1.15] ÷2.5
5.4÷[2.6×(3.7-2.9)+0.62]
12×6÷(12-7.2)-6
12×6÷7.2-6
33.02-(148.4-90.85)÷2.5
76.(25%-695%-12%)*36
7/4*3/5+3/4*2/5
1-1/4+8/9/7/9
7+1/6/3/24+2/21
8/15*3/5
3/4/9/10-1/6
8/3+1/2)/5/6-1/3]/1/7
9/5+3/5/2+3/4
8^6(2-2/3/1/2)]*2/5
8+5268.32-2569
3+456-52*8
87.5%+6325
8/2+1/3+1/4
89+456-78
5%+. 3/7 × 49/9 - 4/3
9 × 15/36 + 1/27
2× 5/6 – 2/9 ×3
3× 5/4 + 1/4
94÷ 3/8 – 3/8 ÷6
95/7 × 5/9 + 3/7 × 5/9
6/2 -( 3/2 + 4/5 )
8 + ( 1/8 + 1/9 )
8 × 5/6 + 5/6
1/4 × 8/9 - 1/3
10× 5/49 + 3/14
1.5 ×( 1/2 + 2/3 )
2/9 × 4/5 + 8 × 11/5
3.1 × 5/6 – 5/6
4/7 - ( 2/7 – 10/21 )
19 × 18 – 14 × 2/7
5 × 25/16 + 2/3 × 3/4
4 × 8/7 – 5/6 × 12/15
7/32 – 3/4 × 9/24
2/3÷1/2-1/4×2/5
2-6/13÷9/26-2/3
2/9+1/2÷4/5+3/8
10÷5/9+1/6×4
1/2×2/5+9/10÷9/20
102×(-4.5)-(-3)×(-5) ÷2
7.8×6.9+2.2×6.9
(-2)+2-(-52)×(-1) ×5+87÷(-3)×(-1)
5.6×0.258×(20-1.25)
(-7.1) ×〔(-3)×(-5)〕÷2
-2.5×(-4.8)×(0.09)÷(-0.27)
127+352+73+44×(-2)
89×276+(-135)-33
25×71+75÷29 -88÷(-2)
243+89+111+57
9405-2940÷28×21
920-1680÷40÷7
690+47×52-398
148+3328÷64-75
360×24÷32+730
2100-94+48×54
51+(2304-2042)×23
4215+(4361-716)÷81
(247+18)×27÷25
36-720÷(360÷18)
1080÷(63-54)×80
(528+912)×5-6178
8528÷41×38-904
264+318-8280÷69
(174+209)×26- (9000^0)
814-(278+322)÷15
1406+735×9÷45
3168-7828÷38+504
796-5040÷(630÷7)
285+(3000-372)÷36
1+5/6-19/12
3x(-9)+7x(-9)
(-54)x1/6x(-1/3)
1.18.1+(3-0.299÷0.23)×1
2.(6.8-6.8×0.55)÷8.5
3.0.12× 4.8÷0.12×4.84
3.2×1.5+2.5÷(-1.6)
(-2)×3.2×(1.5+2.5)÷1.6
5.6-1.6÷4+(6.8-9)
5.38+7.85-5.37÷89
6.7.2÷0.8-1.2×5
6-1.19×3-0.43
7.6.5×(4.8-1.2×4)
0.68×1.9+0.32×1.9
8.10.15-10.75×0.4-5.7
9.5.8×(3.87-0.13)
(-8.01)+4.2×3.74
10.32.52-(6+9.728÷3.2)×2.5
11.[(7.1-5.6)×0.9-1.15] ÷2.5
12.5.4÷[2.6×(3.7-2.9)+0.62]
13.12×6÷(12-7.2)-6
14.12×6÷7.2-6
15.33.02-(148.4-90.85)÷2.5
(-5)-252×(-78)
(-6) ×(-2)+3÷(5+50)
7-7+3-6-(-90)
(-8)(-3)×(-8)×25
(7+13) ÷(-616)÷(-28)
(8+14-100-27)÷4
(-15) ÷(-1)-101÷10
16÷0.21×(-8) ×(4.1+5.9)
(-10) ×(-2) ×4÷{-9÷[6+(-5.67)]}
(-18)(-4)2×[8.01×(-3.14)
9-32{-890-[79+8.1] ×9}
(-20)-23+(-9) ×9.42
(-24)3.4×104÷(-5) ×200.96
[-|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) +√9
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2) ×2^7
(5+3/8*8/30/(-2)- √36
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
1+2+3+4+......+100000
1/1+1/2+1/3+......1/50
1+1/2+1/4+1/8+1/16+......1/512
3+9+27+81+243+......9999
1+1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90
8-2×32-(-2×3)2
–12 × (-3)2-(-1/2)2003×(-2)2002÷2/9
(0.5-3/2)÷3/1×[-2-(-3)3]-∣1/8-0.52∣
[-38-(-1)7+(-3)8]×-53
a^3-2b^3+ab(2a-b)-√a-b^2
够了么 不够 还想我要啊
例1、合并同类项
(1)(3x-5y)-(6x+7y)+(9x-2y)
(2)2a-[3b-5a-(3a-5b)]
(3)(6m2n-5mn2)-6(m2n-mn2)
解:(1)(3x-5y)-(6x+7y)+(9x-2y)
=3x-5y-6x-7y+9x-2y (正确去掉括号)
=(3-6+9)x+(-5-7-2)y (合并同类项)
=6x-14y
(2)2a-[3b-5a-(3a-5b)] (应按小括号,中括号,大括号的顺序逐层去括号)
=2a-[3b-5a-3a+5b] (先去小括号)
=2a-[-8a+8b] (及时合并同类项)
=2a+8a-8b (去中括号)
=10a-8b
(3)(6m2n-5mn2)-6(m2n-mn2) (注意第二个括号前有因数6)
=6m2n-5mn2-2m2n+3mn2 (去括号与分配律同时进行)
=(6-2)m2n+(-5+3)mn2 (合并同类项)
=4m2n-2mn2
例2.已知:A=3x2-4xy+2y2,B=x2+2xy-5y2
求:(1)A+B (2)A-B (3)若2A-B+C=0,求C。
解:(1)A+B=(3x2-4xy+2y2)+(x2+2xy-5y2)
=3x2-4xy+2y2+x2+2xy-5y2(去括号)
=(3+1)x2+(-4+2)xy+(2-5)y2(合并同类项)
=4x2-2xy-3y2(按x的降幂排列)
(2)A-B=(3x2-4xy+2y2)-(x2+2xy-5y2)
=3x2-4xy+2y2-x2-2xy+5y2 (去括号)
=(3-1)x2+(-4-2)xy+(2+5)y2 (合并同类项)
=2x2-6xy+7y2 (按x的降幂排列)
(3)∵2A-B+C=0
∴C=-2A+B
=-2(3x2-4xy+2y2)+(x2+2xy-5y2)
=-6x2+8xy-4y2+x2+2xy-5y2 (去括号,注意使用分配律)
=(-6+1)x2+(8+2)xy+(-4-5)y2 (合并同类项)
=-5x2+10xy-9y2 (按x的降幂排列)
例3.计算:
(1)m2+(-mn)-n2+(-m2)-(-0.5n2)
(2)2(4an+2-an)-3an+(an+1-2an+1)-(8an+2+3an)
(3)化简:(x-y)2-(x-y)2-[(x-y)2-(x-y)2]
解:(1)m2+(-mn)-n2+(-m2)-(-0.5n2)
=m2-mn-n2-m2+n2 (去括号)
=(-)m2-mn+(-+)n2 (合并同类项)
=-m2-mn-n2 (按m的降幂排列)
(2)2(4an+2-an)-3an+(an+1-2an+1)-(8an+2+3an)
=8an+2-2an-3an-an+1-8an+2-3an (去括号)
=0+(-2-3-3)an-an+1 (合并同类项)
=-an+1-8an
(3)(x-y)2-(x-y)2-[(x-y)2-(x-y)2] [把(x-y)2看作一个整体]
=(x-y)2-(x-y)2-(x-y)2+(x-y)2 (去掉中括号)
=(1--+)(x-y)2 (“合并同类项”)
=(x-y)2
例4求3x2-2{x-5[x-3(x-2x2)-3(x2-2x)]-(x-1)}的值,其中x=2。
四年级数学下册简便计算题1000道
四年级数学下册简便计算题1000道
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热心网友
2019-04-09
乘法分配律练习题
乘法分配律特别要注意“两个数的和与一个数相乘,可以先把它们与这个数分别相乘,再相加”中的分别两个字。
1、选择。下面4组式子中,哪道式子计算较简便?把算式前面的序号填在括号里。
⑴①(36+64)×13与②36×13+64×13 ()
⑵①135×15+65×15与②(135+65)×15 ()
⑶①101×45与②100×45+1×45 ()
⑷①125×842与②125×800+125×40+125×2 ()
2、判断下面的5组等式,应用乘法分配律用对的打“ü”,应用错的打“×”
①(7+8+9)×10=7×10+8×10+9 ()
②12×9+3×9 = 12+3×9 ()
③(25+50)×200 = 25×200+50 ()
④101×63=100×63+63 ()
⑤98 ×15= 100 ×15 + 2 ×15 ()类型一:(注意:一定要括号外的数分别乘括
号里的两个数,再把积相加)
(40+8)×25 125×(8+80)
36×(100+50)24×(2+10)
86×(1000-2)15×(40-8)
类型二:(注意:两个积中相同的因数只能写
一次)
36×34+36×66 75×23+25×23
63×43+57×63 93×6+93×4
325×113-325×13 28×18-8×28 类型三:(提示:把102看作100+2;
81看作80+1,再用乘法分配律)
78×102 69×102
56×101 52×102
125×81 25×41
类型四:(提示:把99看作100-1;39
看作40-1,再用乘法分配律)
31×99 42×98
29×99 85×98
125×79 25×39
类型五:(提示:把83看作83×1,再用乘法分配律)
83+83×99 56+56×99
99×99+99 75×101-75
125×81-125 91×31-91
简便计算120道练习题
(1)67+42+33+58 (2)258-58-26-74 (3)125×16 (4)50×(2×4)×25
(5)7×8×3×125 (6)26×103 (7)501×12 (8)25×(40+8)(9)39×14+61×14 (10)163×8+37×8 (11)202×13 (12)77×4×5 (13)27×99 (14)48×250
(15)98+303 (16)49+49×49 (17)55×25+25×45 (18)123×67-23×67
(19)39×101-39 (20)99×64+64 (21)76×23+24×23 (22)12+19×12
(23)21+254+79+46 (24)25×16×5 (25)52×32+48×32 (26)18×137-18×37 (27)450÷18 (28)420÷35 (29)480÷15 (30)21×99 (31)125×32 (32)12×301 (33)75×3×4 (34)19+99×19 (35)256×9-46×9 (36)13+13×49(37)(25+125)×8 (38)541×67-67×441 (39)43×201 (40)102×35 (41)304×22 (42)(30+4)×25 (43)38×7+62×7 (44)152×8+148×8 (45)16×401(46)103×23(47)(30+2)×15 (48)125×(8+16)(49)68×48+68×2 (50)5×27+63×5(51)12×(40-5)(52)35×98 (53)64×9-14×9 (54)23×134-34×23 (55)102×45 (56)648+203 (57)98×32
(58)44×25 (59)63+15×2 (60)43+43×39 (61)27×37+37×23 (62)256×7-56×7 (63)48×101-48 (64)99×62+62 (65)41×99(66)765+98(67)560÷16(68)201×34 (69)36×25 (70)304+297 (71)18×45+18×55(72)226×13-26×13(73)15×301-15 (74)(30+8)×25(75)25×65+25×25(76)75×141-75×40(77)125×18(78)25×35+25 (79)71×23-71×13 (80)125×(80-8)(81)101×89-89 (82)88×22+22×12
(83)28×57+43×28 (84)202×41 (85)25×19×4 (86)47+99+47 (87)103×37 (88)34×201 (89)25×5×16 (90)56+56×49 (91)57×26+26×43 (92)373×9-73×9 (93)78×101-78 (94)199×53+53 (95)25×124-24×25 (96)250×28 (97)125×16 (98)250×9×4 (99)48×125 (100)402×15 (101)(25+250)×4 (102)199×9+199 (103)24×250 (104)27×18+82×27 (105)2×46+46×18 (106)401×25 (110)25×19 (107)72×101(108)42×(30-1)(109)101×85-85(111)152×49+51×152(112)24×25 (113)93×99+93 (114)13×125×8 (115)125×17+63×125 (116)492-145-155 (117)43×25×2 (118)50×(60+8)(119)28×111-28×11 (120)63×8+91×63+63
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四年级下册数学简便运算题100道
一、判断题。
300÷125÷8
=300÷(125×8)
=300÷1000
=0.3
396-96-172-28
=(396-96)-(172+28)
= 300-200
= 100
125*24
= 125*8*3
= 1000*3
= 3000
360÷24
=360÷6÷4
=60÷4
=15
240÷48
=240÷24÷2
=10÷2
=5
800÷32
=800÷8÷4
=100÷4
=25
27+456+73
=(27+73)+456
=100+456
=556
24÷4+56÷4
=(24+56)÷4
=80÷4
=20
2.5×0.7×0.8
=(2.5×0.8)×0.7
=60×0.7
=42
其它还有一些题目如下:
27+456+73
10-0.4-2.6
0.43+8.6+0.57
244+182+156
14.02-3.5-6.5
2.78+19+199
912-163-237
以上就是九年级数学计算题100道的全部内容,四年级下册数学简便计算题大全一、判断题。1、27+33+67=27+100()2、125×16=125×8×2()3、134-75+25=134-(75+25)()4、1250÷(25×5)=1250÷25×5()二、选择(把正确答案的序号填入括号内)。1、。