初一100道数学计算题及问题详解.pdf

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1、8+109123-123+8.899991001=99991000+1=99991000+99991=10008999=14.8-6.5 6.33.710=83933-157-43=933-157+43=933-200=7334821-998=4821-1000+2=3823I3212525=4812525=4258125=1001000=1000009048268=2600+2600+2600+1248 26=260026+260026+260026+1248269=100+100+100+48=3482881 43=1290+1591 434=129043+1591 44424446.25

2、=42371.8+18 8-47=52+28-47=80-47 7 分之 41=84/710.25=84/74=8/72700 506499 900=27007900=18900900=2133.02148.490.85=10111=11=00.231=19.8-18+29+-52+60=50-1+-1/2+3/4+-1/4=19-3+-2+-1+0+1+2=-1-26.54+-6.14+18.54+6.14=-3-301+125+301+-75=-81.125+-17/5+-1/8+-0.6=-3-98+76+*2356+-5+21*8/2-6-5968/21-8-11*8+61-2/9-7

3、/9-564.6-1/2+3+5/6-7/122/3-4-1/4*/1/3+222+4*3-2*8-8*1/2+8/1/8/*/+2/+0/7-*/1/218-6/*5+3/8*8/30/-3/2*/1/2*/2/3-3x+2y-5x-7y14372727563 75-12+18 152160 83-7918 28084024532513 8558870 1437272756381432 37.85-7.85+6.4 301563 947599766436 1925438677.1-5.60.9-1.152.5 814323.7-2.9+0.62 9475997664 603.5 2041.2

4、136+6465-3450.554.8 58+3764-95812-7009+311.5+2.585+1414+20826 120-36418+35284+16512-820874/71/33/5-3/10 4/5+1/47/3+7/1012.7809+3111 136+6465-3451.5+2.585+1414+20826 58+3764-950.558.5284+16512-8208181.5+2.5120-3643.74 347+452-4160523.2 2.5 87 58+37 64-95 7.1-5.6 0.9-1.15 1.5+2.5 3.7-2.9+0.62 12612-7.

5、2-66+1.5+2.51.5+2.533.02148.490.852.5123+7+4.23+9/4+3.75+5/4-3.75+-|-+|-|-|1-5/4-|-3/4|*4a*1/61.3/749/9-4/32.8/9 15/36+1/273.12 5/6 2/9 34.8 5/4+1/45.6 3/8 3/8 66.4/7 5/9+3/7 5/97.5/2-3/2+4/5 8.7/8+1/8+1/9 9.9 5/6+5/610.3/4 8/9-1/30.9=7.2-11.7 5/49+3/1412.6 1/2+2/3 13.8 4/5+8 11/514.31 5/6 5/615.9/7

6、-2/7 10/21 16.5/9 18 14 2/717.4/5 25/16+2/3 3/418.14 8/7 5/6 12/1519.17/32 3/4 9/2420.3 2/9+1/321.5/7 3/25+3/722.3/14 2/3+1/623.1/5 2/3+5/624.9/22+1/11 1/225.5/3 11/5+4/326.45 2/3+1/3 1527.7/19+12/19 5/628.1/4+3/4 2/329.8/7 21/16+1/230.101 1/5 1/5 2131.5016040 58+37064-4518+3533.347+45.2-4160523458+

7、3764-9564-4556+42 420+580-6421289+3111 136+6465-3452338.85+1414+2082639.284+16512-820818418+3541.58+3764-950.551.5+2.51.5+2.5 4=5.38+7.85-5.37=3-0.43=3.2 51.-5+58+13+90+78-+5052.-7*2-57/353.*2/+79/3+6/454.123+456+789+98/55.369/33-56.39+3x42/2x57.9x8x7/5x58.11x22/59.94+/101.a3-2b3+ab=a3+2a2b-2b3-ab2=

8、a2-b2=2.2-4y+4y2=23.2+3+x2+2x+3=2+4+3=24.+-12=a2+3a+2+2a2-3a-2-12=3a2-12=35.x22-2xy+y22=x-y2=2=z226.32+28-20=3-2+10=7.2-2+a2-c2=2-c2+a2-2=+=28.x-2=-2=2-2=1.3/7 49/9-4/32.8/9 15/36+1/273.12 5/6 2/9 34.8 5/4+1/45.6 3/8 3/8 66.4/7 5/9+3/7 5/97.5/2-3/2+4/5 8.7/8+1/8+1/9 9.9 5/6+5/610.3/4 8/9-1/30.9=7.2-

9、11.7 5/49+3/1412.6 1/2+2/3 13.8 4/5+8 11/514.31 5/6 5/615.9/7-2/7 10/21 16.5/9 18 14 2/717.4/5 25/16+2/3 3/418.14 8/7 5/6 12/1519.17/32 3/4 9/2420.3 2/9+1/321.5/7 3/25+3/722.3/14 2/3+1/623.1/5 2/3+5/624.9/22+1/11 1/225.5/3 11/5+4/326.45 2/3+1/3 1527.7/19+12/19 5/628.1/4+3/4 2/329.8/7 21/16+1/230.101

10、 1/5 1/5 2131.5016040 58+37064-4518+3533.347+452-4160523458+3764-9564-4556+42 420+580-642128 9+3111136+64 65-34523 38.85+14 14+20826 39.284+16512-820818418+3541.58+3764-950.551.5+2.5 1.5+2.5 4=5.38+7.85-5.37=3-0.43=3.2 51.-5+58+13+90+78-+5052.-7*2-57/353.*2/+79/3+6/454.123+456+789+98/55.369/33-56.39+3x42/2x57.9x8x7/5x58.11x22/59.94+/101.a3-2b3+ab=a3+2a2b-2b3-ab2=a2-b2=2.2-4y+4y2=23.2+3+x2+2x+3=2+4+3=24.+-12=a2+3a+2+2a2-3a-2-12=3a2-12=35.x22-2xy+y22=x-y2=2=z226.32+28-20=3-2+10=7.2-2+a2-c2=2-c2+a2-2=+=28.x-2=-2=2-2=.