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1、初中数学计算题200道(-1.5)(-9)-12(-4) 56(-7)-25+0.4 3.5729(-4) 5.6(-2.8)-(-50)2 9.6+(-7.3)(-5)-(-7) 12.35.6+(-1.2) (-75.6)(1/4+1/5) 9.5(-9.5)1/2 95.77(-2)+(-34.6) (-51.88)2-(-5)24 1.25*-3+70*-5+5*-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 12 5/6 2/9 3 8 5/4 + 1/4 6 3/8 3/
2、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 2/9 + 1/3 5/7 3/25 + 3/7 3/14 2/3 + 1/6 1/5 2/3 + 5/6 9/22 + 1/11 1/2 5/3 11/5 + 4/3
3、 45 2/3 + 1/3 15 7/19 + 12/19 5/6 1/4 + 3/4 2/3 8/7 21/16 + 1/2 101 1/5 1/5 21 5016040 120-14418+35 347+452-416052 3758+3764-95 9564-45 178-14556+42 812-7009+3111 85+1414+20826 120-36418+35 58+3764-95 (6.8-6.80.55)8.5 0.12 4.80.124.8 1.5+2.51.6 6-1.64= 5.38+7.85-5.37= 7.20.8-1.25= 6-1.193-0.43= 4= 3
4、.74 3.22.5 7.1-5.60.9-1.15 2.5 3.7-2.9+0.62 12612-7.2-6 1267.2-6 0.681.9+0.321.9 58+37064-45 420+580-642128 136+665-34523 15-10.750.4-5.7 0.231 (6.8-6.80.55)8.5 0.12 4.80.124.8 1.5+2.51.6 6+1.5+2.51.6 0.681.9+0.321.9 10.15-10.750.4-5.7 3.74 3.22.5 7.1-5.60.9-1.15 2.5 3.7-2.9+0.62 12612-7.2-6 1267.2-
5、6 33.02148.490.852.5 76.(25%-695%-12%)*36 77./4*3/5+3/4*2/5 78.1-1/4+8/9/7/9 79.+1/6/3/24+2/21 80./15*3/5 81.3/4/9/10-1/6 82./3+1/2)/5/6-1/3/1/7 83./5+3/5/2+3/4 84.(2-2/3/1/2)*2/5 85.+5268.32-2569 86.3+456-52*8 87.5%+6325 88./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 +
6、 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 29 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 2/31/21/42/5 26/139/262/3 2/91/24/53/8 105/91/64 1/22/59/109/20 5/93/102/
7、72/5 1/21/44/51/8 3/45/74/31/2 238/91/271/27 85/62/54 1/23/45/124/5 8/93/43/83/4 5/85/43/239/11 1.22.5+0.82.5 8.91.25-0.91.25 12.57.40.8 6.4-2.5+0.24 0.5 0.351.6+0.353.4 0.258.64 6.72-3.28-1.72 0.45+6.37+4.55 3-25-2.5 241846-620-380 4.846+4.854 0.8+0.82.5 1.253.682.5-12.52.4 2812.5-12.520 23.65-3.07
8、+3.65 0.25871.25 1.6599+1.65 27.85-7.85+3.4 481.25+501.250.28 7.89.9+0.78 (1010+309+4+681+612 391467826854 5.157/8+6.1-0.60625 3/7 49/9 - 4/3 8/9 15/36 + 1/27 12 5/6 2/9 3 8 5/4 + 1/4 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. 9 5/6 + 5/6 3/4 8/9 - 1/3 7 5/49 + 3/14 6 1/2 + 2/3
9、 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 2/9 + 1/3 5/7 3/25 + 3/7 3/14 2/3 + 1/6 1/5 2/3 + 5/6 9/22 + 1/11 1/2 5/3 11/5 + 4/3 45 2/3 + 1/3 15 7/19 + 12/19 5/6 1/4 + 3/4 2/3 8/7 21/16 + 1/2 101 1/5 1/5 21 5016040 58+37064-45 120-14
10、418+35 347+452-416052 58+3764-95 9564-45 178-14556+42 420+580-642128 812-7009+3111 136+6465-34523 85+1414+20826 284+16512-820818 120-36418+35 58+3764-95 (6.8-6.80.55)8.5 0.12 4.80.124.8 1.5+2.51.5+2.51.6 6-1.64 5.38+7.85-5.37 7.20.8-1.25 6-1.193-0.43 4 0.681.9+0.321.9 48.10.15-10.750.4-5.7 3.74 3.22
11、.5 51.7.1-5.60.9-1.15 2.5 3.7-2.9+0.62 612-7.2-6 41267.2-6 102(-4.5)-(-3)(-5) 2 6.9 (-2)+2-(-52)(-1) 5+87(-3)(-1) 201.25 (-7.1) (-3)(-5)2 -2.5(-4.8)(0.09)(-0.27) 127+352+73+44(-2) 89276+(-135)-33 2571+7529 -88(-2) 243+89+111+57 9405-29402821 920-1680407 690+4752-398 148+332864-75 3602432+730 2100-94
12、+4854 51+2304-204223 4215+4361-71681 247+182725 36-72036018 108063-5480 528+9125-6178 85284138-904 264+318-828069 174+20926- (90000) 814-278+32215 1406+735945 3168-782838+504 796-50406307 285+3000-37236 1+5/6-19/12 3x(-9)+7x(-9) (-54)x1/6x(-1/3) 0.231 2.(6.8-6.80.55)8.5 4.80.124.84 3.21.5+2.5(-1.6)
13、-21.5+2.51.6 5.6-1.64+(6.8-9) 5.38+7.85-5.3789 0.8-1.25 6-1.193-0.43 4 0.681.9+0.321.9 -10.750.4-5.7 3.87-0.13 (-8.01)+4.23.74 3.22.5 11.7.1-5.60.9-1.15 2.5 3.7-2.9+0.62 612-7.2-6 14.1267.2-6 148.490.852.5 (-5)-252-78 (-6) (-2)+35+50 7-7+3-6-90 (-8)(-3)(-8)25 (7+13) (-616)(-28) 8+14-100-274 (-15) (-
14、1)-10110 160.21(-8) (4.1+5.9) (-10) (-2) 4-96+(-5.67) (-18)(-4)28.01(-3.14) 9-32-890-79+8.1 9 (-20)-23+(-9) 9.42 (-24)3.4104(-5) 200.96 -|98|+76+(-87)*2356+(-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
15、/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) 27 (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 8232
16、(-23)2 12 (-3)2(-1/2)2003(-2)20022/9 (0.5-3/2)3/1-2-(-3)3 -38-(-1)7+(-3)8-53 a3-2b3+ab(2a-b)-a-b2 15*(-8)+2b2+ (x2+y2)2-4y(x2+y2)+4y2 6-3a8-(-52-6) (x2+2x)2+3(x2+2x)+x2+2x+3 (a+1)(a+2)+(2a+1)(a-2)-12 x2(y+z)2-2xy(x-z)(y+z)+y2(x-z)2 3(a+2)2+28(a+2)-20 (a+b)2-(b-c)2+a2-c2 8x(x+1)(x2+x-1)-2 x2(x-1)2-3(
17、x2-x)-56 14a(a-b)+(a-b)2 11.-ab(a-b)+a(b-a)2 12.3x+22x=54x 13.5x+2a-a=2b-2x+4a 3.14*3.42 (2)972*3.14*1/4 -|98|+76+(-87)*2356+(-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)*(-
18、12) (-28)/(-6+4)+(-1) 2/(-2)+0/7-(-8)*(|-2|-54) (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*3-64-52 -2*8-8
19、*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 -
20、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-(-32+57) -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
21、*2-52+(62-52) (-6-24.3)-(-12+9.1)+(0-2.1) -1+8-7+57-(-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*5/6y2/9y*|3x-2y| 85/4+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 +
22、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 9/24 345 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+1/111/2-169 458 2/3 + 1/3 15 7/19 + 12/19 5/6 1/4 + 3/4 2/3 8/7 21/16 + 1/2 1014(-1/51/521) 50160405 120-14418
23、+35 347+452-416052 37258+3764-95 9564-45 178-14556+42 812-7009+3111 85+1414+20826 120-36418+35 58+3764-95 (6.8-6.80.55)8.5 0.12 4.80.124.8 1.5+2.51.6 6-1.64= 5.38+7.85-5.37= 7.20.8-1.25= 6-1.193-0.43= 4= 3.74 3.22.5 7.1-5.60.9-1.15 2.5 3.7-2.9+0.62 12612-7.2-6 1267.2-6 0.681.9+0.321.9 58+37064-45 42
24、0+580-642128 136+665-34523 15-10.750.4-5.7 0.231 (6.8-6.80.55)8.5 0.12 4.80.124.8 1.5+2.51.6 6+1.5+2.51.6 0.681.9+0.321.9 10.15-10.750.4-5.7 3.74 3.22.5 7.1-5.60.9-1.15 2.5 3.7-2.9+0.62 12612-7.2-6 1267.2-6 33.02148.490.852.5 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/
25、5 3/4/9/10-1/6 8/3+1/2)/5/6-1/3/1/7 9/5+3/5/2+3/4 86(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
26、/3 29 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 2/31/21/42/5 26/139/262/3 2/91/24/53/8 105/91/64 1/22/59/109/20 5/93/102/72/5 1/21/44/51/8 3/45/74/31/2 238/91/271/27 185/62/54 11/23/45/124/5 8/93/43/83/4 5/85/43/239/11 1.22.5+0.82.5 8.91.25
27、-0.91.25 12.57.40.8 6.4-2.5+0.24 6.59.5+6.50.5 0.351.6+0.353.4 0.258.64 6.72-3.28-1.72 0.45+6.37+4.55 3-25-2.5 241846-620-380 4.846+4.854 0.8+0.82.5 1.253.682.5-12.52.4 2812.5-12.520 23.65-3.07+3.65 0.25871.25 1.6599+1.65 27.85-7.85+3.4 481.25+501.250.28 7.89.9+0.78 (1010+309+4+681+612 391467826854
28、5.157/8+6.1-0.60625 3/7 49/9 - 4/3 8/9 15/36 + 1/27 12 5/6 2/9 3 8 5/4 + 1/4 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
29、 2/9 + 1/3 5/7 3/25 + 3/7 3/14 2/3 + 1/6 1/5 2/3 + 5/6 9/22 + 1/11 1/2 5/3 11/5 + 4/3 45 2/3 + 1/3 15 7/19 + 12/19 5/6 1/4 + 3/4 2/3 8/7 21/16 + 1/2 101 1/5 1/5 21 5016040 58+37064-45 120-14418+35 347+452-416052 58+3764-95 9564-45 178-14556+42 420+580-642128 812-7009+3111 136+6465-34523 85+1414+2082
30、6 284+16512-820818 120-36418+35 (58+3764-95 (6.8-6.80.55)8.5 0.12 4.80.124.8 1.5+2.51.6 1.5+2.51.6 6-1.64= 5.38+7.85-5.37= 7.20.8-1.25= 6-1.193-0.43= 1.9 10.15-10.750.4-5.7 3.74 3.22.5 7.1-5.60.9-1.15 2.5 3.7-2.9+0.62 12612-7.2-6 41267.2-6 10224.5+85-529 6.9 5.60.25 8201.25 127+352+73+44 89+276+135+
31、33 25+71+75+29 +88 243+89+111+57 9405-29402821 920-1680407 690+4752-398 148+332864-75 3602432+730 2100-94+4854 51+2304-204223 4215+4361-71681 247+182725 36-72036018 108063-5480 528+9125-6178 85284138-904 264+318-828069 174+20926- 9000 814-278+32215 1406+735945 3168-782838+504 796-50406307 285+3000-3
32、7236 1+5/6-19/12 3x(-9)+7x(-9 (-54)x1/6x(-1/3) 0.231 (6.8-6.80.55)8.5 0.12 4.80.124.8 1.5+2.51.6 1.5+2.51.6 5.6-1.64 5.38+7.85-5.37 7.20.8-1.25 6-1.193-0.43 4 0.681.9+0.321.9 115-10.750.4-5.7 3.74 3.22.5 7.1-5.60.9-1.15 2.5 3.7-2.9+0.62 12612-7.2-6 1267.2-6 33.02148.490.852.5 二.解方程 2x=7(x-5) 8(3x+3)
33、=240 4.74+4x-2.5x=8.1 (2.81+x)2.81=1 15x-30=16(x-2) (-3)3-33 (-1)2-5.6 22+33-44 (24-32)3-55 (1.62-23)-2.12 (5.662)2-152 (-15)x=225,x= (-4)2-4222 (-5.6)2+32 5.62+(-5.6)2(-1)2 3x+28-x=56 1.5x+6=3.75 2(3.6x+2.8)=-1.6 9.5x+9.5=19 18(x-35)=-36 x+7-(-36+82)/2=8+74/3 a-7-98+7a=3.2*5a 89/2+35/6x=3*9+23/5+7x
34、 3X+189/3=521/2 4Y+119*3=22/11 3X*189=5*45/3 8Z/6=458/5 3X+77=59 4Y-6985=81 87X*13=5 7Z/93=41 15X+863-65X=54 58Y*55=27489 7(2x-1)-3(4x-1)=4(3x+2)-1 (5y+1)+ (1-y)= (9y+1)+ (1-3y) -6(-74*8)-4=x+2 20%+(1-20%)(320-x)=32040% 2(x-2)+2=x+1 2(x-2)-3(4x-1)=9(1-x) 11x+64-2x=100-9x 15-(8-5x)=7x+(4-3x) 3(x-7)-2
35、9-4(2-x)=22 3/22/3(1/4x-1)-2-x=2 2x+72=157 1)判断题: 判断以下方程是否是一元一次方程: -3x-6x2=7( ) 5x+1-2x=3x-2 ( ) 3y-4=2y+1. ( ) 判断以下方程的解法是否正确: 解方程3y-4=y+3 解:3y-y=3+4,2y=7,y=3.5 解方程:0.4x-3=0.1x+2 解:0.4x+0.1x=2-3;0.5x=-1,x=-2 解方程 解:5x+15-2x-2=10,3x=-3,x=-1; 解方程 解:2x-4+5-5x=-1,-3x=-2,x= .( ) 2)填空题: 1)假设23-ax-4=5是关于x的一
36、元一次方程,那么a_ 2关于x的方程ax=3的解是自然数,那么整数a的值为_ 3方程5x-2(x-1)=17 的解是_ 4x=2是方程2x-3=m- 的解,那么m=_ . 5假设-2x2-5m+1=0 是关于x的一元一次方程,那么m=_ . 6当y=_ 时,代数式5y+6及3y-2互为相反数. 7当m=_ 时,方程 的解为0. 8a0.那么关于x的方程3ab-(a+b)x=(a-b)x的解为_ . 3)选择题: 1方程ax=b的解是 . A有一个解x= B有无数个解 C没有解 D当a0时,x= 2解方程 ( x-1)=3,以下变形中,较简捷的是 A.方程两边都乘以4,得3 x-1=12 B.去
37、括号,得x- =3 C.两边同除以 ,得 x-1=4 D.整理,得 3方程2- 去分母得 A.2-2(2x-4)=-(x-7) B.12-2(2x-4)=-x-7 C.12-2(2x-4)=-(x-7) D.以上答案均不对 4假设代数式 比 大1,那么x的值是 . A13 B C8 D 5x=1.5是方程 的解. A.4x+2=2x-(-2-9) B234(5x-1)-8-2=8 C.4x+9 =6x+6 4)解答以下各题: 1x等于什么数时,代数式 的值相等? 2y等于什么数时,代数式 的值比代数式 的值少3? 3当m等于什么数时,代数式2m- 的值及代数式 的值的与等于5? 4解以下关于x
38、的方程: ax+b=bx+a;(ab); 三.化简、化简求值 化间求值: 1、-9(x-2)-y(x-5) 1化简整个式子。 2当x=5时,求y的解。 2、5(9+a)b-5(5+b)a 1化简整个式子。 2当a=5/7时,求式子的值。 3、62g+62(g+b)-b 1化简整个式子。 2当g=5/7时,求b的解。 4、3(x+y)-5(4+x)+2y 1化简整个式子。 5、(x+y)(x-y) 1化简整个式子。 6、2ab+aa-b 1化简整个式子。 7、5.6x+4(x+y)-y 1化简整个式子。 8、6.4(x+2.9)-y+2(x-y) 1化简整个式子。 9、(2.5+x)(5.2+y) 1化简整个式子。 10、9.77x-(5-a)x+2a 1化简整个式子。 把x=-2, y=0.1, a=4, b=1代入以下式子求值 3(x+2)-2(x-3) 5(5+a)b-5(5+b)a 62a+62(a+b)-b 3(x+y)-5(4+x)+2y (x+y)(x-y) 2ab+aa-b 5.6x+4(x+y)-y 6.4(x+2.9)-y+2(x-y) (2.5+x)(5.2+y) 9.77x-(5-a)x+2a 第 32 页