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小学数学方程式题目100道题,急求!!!

100(1-x)=815x=604x=6032x=7216x=481/4x=41/5x=5320-x=16090-2x=408x=10009x=5580-4x=2060(1-x)=12055-5x=578-9x=12-6999(1+x)=1000 y-8+98=445x=45-58w+34=427b+58=7244x=4444 5%x=100 50%+6x=30 100(1-x)=815x=604x=6032

3X+5X=48 14X-8X=12 6*5+2X=44 20X-50=50 28+6X=88 32-22X=10 24-3X=3 10X*(5+1)=60 99X=100-X X+3=18 X-6=12 56-2X=20 4y+2=6 x+32=76 3x+6=18 16+8x=40 2x-8=8 4x-3*9=29 8x-3x=105 x-6*5=42 x+5=7 2x+3=10 12x-9x=9 6x+18=48

2.1*11+11*1.9=443.2x3.2-0.24=104 x 2.5+17.7=27.72 + 1/6 +1/3=2.53/4 x 1/4 =12/13.2+2.6=5.80.87-0.49=0.38 1.25*17.6=2236.1÷0.8=45.1252.63*12.5 =32.8751.2*12+2.3*2=191.25*8=1010003-9726=77720.6*13.5=278.1

(0.5+x)+x=9.8÷2 2(x+x+0.5)=9.8 25000+x=6x 3200=450+5x+x x-0.8x=6 12x-8x=4.8 7.5*2x=15 1.2x=81.6 x+5.6=9.4 x-0.7x=3.6 91÷x =1.3 x+8.3=10.7 15x =3 3x-8=16 7(x-2)=2x+3 3x+9=2718(x-2)=270 12x=300-4x 7x+5.3=7.4 3x÷5=4.8 30÷x+25=85

解方程 X- X= 2X + = 70%X + 20%X = 3.6 X*=20* 25% +10X = X - 15%X = 68 X+X=121 5X-3*= X÷=126X+5=13.4 3X= X÷= X+X= 4X-6*=2 ÷X= X = X = * X÷ =* 4x-3 *9 = 29 x + x = 4 X-21*=4 6X+5=13.4 X-X= 4χ-6=385X= X= X÷= X÷=12 X= X=*

一、填空题(每小题3分,共24分)1.(-1)2002-(-1)2003=_________________.答案 si=9]七年级期末数学复习题(满分100分,90分钟完卷)一.选择题:(每小题3分,共

1.59÷80.45=0.0165.79÷3.38=19.4687.28*36.43=3180.1086.78÷89.71=0.9663.20÷1.54=40.7936.20÷88.00=0.411.10÷12.45=0.0859.30÷29.26=2.0290.03*26.04=2344.811.83*35.02=64.1953.30÷61.37=0.8618.52*19.03=352.6473.23÷64.45=1.

http://www.lesun.org/teacher/html/2004-11/4431.htmhttp://www.baidu.com/s?ie=gb2312&bs=%D0%A1%D1%A7%CE%E5%C4%EA%BC%B6%B7%D6%CA%FD%BD%E2%B7%BD%B3%CC100%B5%C0&sr=&z=&cl=3&f=8&tn=baidu&wd=%D

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