北师大版数学小升初专项训练(解方程及解比例)练习题
解比例:
x:10=1:1 0.4:x=1.2:2 12=3
43
112:5=14:x 0.8:4=x:8
1.25:0.25=x:1.6 x: 2=6: 24325
2.8:4.2=x:9.6
2=89x 4.56x=2.2110:x=118:4 2.8:4.2=x:9.6 2.4x34:x=3:12
3654x=3 45:x=18:26
511:=x: 8612110.61.5
0.6∶4=2.4∶x 6∶x=∶ = x:24= : 8:x=:
34134534
34∶12=x∶45
10∶50=x∶40
13∶120=169∶ x
解方程
X- 27 X=34 2X +
X×3=20×154 25% + 10X =
5312x1112∶45=2536∶x x∶1114=0.7∶2 1.3∶x=5.2∶20 x∶3.6=6∶18 4.60.2=8x 38=x64 235 = 5 70%X + 20%X = 3.6 45 X - 15%X = 68
X+X=121 5X-3×35521= X÷=12 8
6X+5 =13.4 3X=
X+7X=384 4X
125 ÷X=310 X÷ 635=2645×1325
217343 X÷2=78716 -6×23=2 32581165 X = 72 9 X = 6×51 x-3 ×9 = 29 112x + 6x = 4
4
北师大版数学小升初专项训练(解方程及解比例)练习题
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