二年级下册数学简便计算练习 (6)

1 小学数学五年级上册简便计算练习 1 请用简便方法计算下列各题 0.25×0.28 0.125×3.2×2.5 35×40.2 0.25×4÷0.25×4 3.5×9.9 3.5×99+3.5 3.5×101-3.5 3.5×9.9+3.5×0.1 3.5×2.7+35×0.73 3.5×2.7-3.5×0.7 (32+5.6)÷0.8 3.5÷0.6-0.5÷0.6 4.9÷3.5 7÷0.25÷4 7÷0.125 ÷8 7.35÷(7.35×0.25) 7.35÷(7.35÷0.25) 7.325-(5.325+1.7) 3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.5 7.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7) 2 3.29+0.73-2.29+2.27 3.29×0.25×4 0.125×8.8 63.4÷2.5÷0.4 4.9÷1.4 3.9÷（1.3×5） （7.7＋1.54）÷0.7 2.5×2.4 2.7÷45 0.35×1.25×2×0.8 0.1×32.4 15÷0.25 0.86×15.7－0.86×14.7 2.4×102 14－7.32－2.68 2.64＋8.67＋7.36＋11.33 2.31×1.2×0.5 （2.5－0.25）×0.4 9.16×1.5－0.5×9.16 3.6－3.6×0.5 0.2×7.6 0.85×199 0.25×8.5×4 3 0.25×36 0.125×3.2×2.5 35×40.2 (0.5+x)+x=9.8÷2 x+2x+18=78 1.5(x+1.6)=3.6 2(X+X+0.5)=9.8 (200-x)÷5=30 2(x-3)=5.8 25000+x=6x (x-140)÷70=4 65x+7=42 3200=450+5X+X 0.1(x+6)=3.3×0.4 9x+4×2.5＝91 X-0.8X=6 4(x-5.6)=1.6 4.2x+2.5x＝134 4 12x-8x=4.8 7(6.5+x)=87.5 10.5x+6.5x=51 7.5*2X=15 (27.5-3.5)÷x=4 89x-43x=9.2 1.2x=81.6 x+19.8=25.8 5x-45=100 x+5.6=9.4 5.6x=33.6 1.2x-0.5x=6.3 x-0.7x=3.6 9.8-x=3.8 23.4=2x=56 91÷x＝1.3 75.6÷x=12.6 4x-x=48.6 5 X+8.3=10.7 5x+12.5=32.3 4.5x-x=28 5(x+8)=102 X-5.7=2.15 3x－8＝16 x+3x+10=70 155X-2X=18 7(x-2)=2x+3 3(x+3)=50-x+3 3X+0.7=5 3x+9=27 5x+15=60 3.5×2=4.2+x 18(x-2)=270 3.5-5x=2 6 26×1.5=2x+10 12x=300-4x 0.3×7+4x=12.5 0.5×16―16×0.2=4x 0.5×16―16×0.2=4x 30÷x+25=85 3x-8=30 9.25－X=0.403 1.4×8-2x=6 6x+6=12 16.9÷X=0.3 6x-12.8×3=0.06 3x-3=1 X÷0.5=2.6 410-3x=170 5x-3x=4 3－5x＝80 7 3(x+0.5)=21 2x+16=19 1.8-6x＝54 0.5x+8=43 5x+8=19 6.7x－60.3＝6.7 1.5x+18=3x 0.2x－0.4＋0.5＝3.7 5×3-x÷2=8 5-8x=4 9.4x－0.4x＝16.2 0.273÷x=0.35 1/3x＋5/6x＝1.4 x÷0.756=90 10-x=8 x÷5+9=21 48-27+5x=31 (0.5+x)+x=9.8÷2 (200-x)÷5=30 2(X+X+0.5)=9.8 8 (x-140)÷70=4 25000+x=6x 0.1(x+6)=3.3×0.4 3200=450+5X+X 4(x-5.6)=1.6 X-0.8X=6 7(6.5+x)=87.5 8-7x=1 12x-8x=4.8 (27.5-3.5)÷x=4 18(x-2)=270 18(x-2)=270 91÷x ＝1.3 12x=300-4x 4(x-5.6)=1.6 7(6.5+x)=87.5 9 0.1(x+6)=3.3×0.4 10.5+x+21=56 x+2x+18=78 (200-x)÷5=30 (x-140)÷70=4 0.1(x+6)=3.3×0.4 (0.5+x)+x=9.8÷2 3(x+2.1)=10.5 2(X+X+0.5)=9.8 410-3x=170 9.8-x=3.8 25000+x=6x 3(x+0.5)=21 75.6÷x=12.6 13(x+5)=169 3200=450+5X+ 0.5x+8=43 1.5x+18=3x 10 42x+25x=134 12x-8x=4.8 5×3-x÷2=8 3(x+3)=50-x+3 1.5(x+1.6)=3.6 3.5-5x=2 9x+4×2.5＝91 x-0.7x=3.6