六年级脱式计算

1、一、脱式计算。 +× ×-× (-)×36 ×(-) (13+)× ×12+ ×57 +×16 ×+÷ ×-× ×11- ×× ×× 101× ×48 ×34×7× ×+× ÷÷ ×23 ×÷ ×× 32.6×32.6×0.2 ×÷6 46

2、5× ××(+) 1-(+)÷ ×58+×42 ×× ×6+÷ 180÷2.5÷4 963.2×0.50.4 9.6÷(9.6×4) 2.08×(9.6÷2.4)÷4.8 78×0.691.2×6.96.9 0.78÷0.25×4  ×× ÷÷ ×÷÷×713÷13 ×

3、÷×32.6×1.9÷2.6×1.9 17.64÷4.96.73 3.4÷(1.20.5)×5 0.25×12.5×3.2 () 2.65×1.71.35×1.7 23.4÷7.82.10.75×18÷0.15 2.5×3.2×1.25 2842÷14+74×3 + 5.211÷7×3 4÷16××4÷4× ÷÷ 1+

4、 7.6×÷1.91.9×1.91.9 5 1.8÷1.15×1 14 6.463.54 4.2÷1.51.5×0.6 0.92÷42 4 3 ÷ 51.6÷3 1.25×19.98×37199.8×1.91998×0.82 9999×71111×37231÷231 70× 8.89×36+8.89×63+8.8911÷21÷3 2007× 216× - 1

5、.65÷51.29×0.2×20% ()×3×() 24×()÷ 4.85×0.170.485×8.3×99 22.86×6.256 54.24.8 0.7÷×24 1.47÷(21.02)0.61×14 2000÷12.5÷25÷0.8÷4 ÷9×÷ ()× ()×1545÷49 ×÷ ()×÷ ()

6、47;(÷4) 7.28-1.25+0.28 9990×200.8+1×2021 0.8×4×12.5×2.5 ÷(+)× 4×0.60.6÷ 33.02148.490.85÷2.51÷÷1÷5.1 1.6×3.6÷× ×7.272.73× 1÷ 56×+ ÷+ ÷×+ × ×÷4.855.15 +× 5×+

7、 ×17 × + 10.21.25 + 2.5÷1.5 1÷+ 2.5× × + ×40÷ 34×+×13 1× (×)÷ ÷()×3 (8×÷)×12.5 × ÷× ()÷ ×÷7 8.242.4÷2.5÷0.4 2÷÷ 6.75+3.25 ÷×+ ×36 ÷() ÷

8、 × ×4÷×4 ÷ ÷ ()×(4) 17×1.5÷ ×÷ ÷9×÷ ()×()×÷ ()÷(÷4) ()×1545÷49 ×0.8 11÷×+ ÷ × ×÷ ×÷+ 51.6÷3 1.25× 0.92÷42 5 1.8÷1.15×1 ÷

9、 × 3.64×1÷22.09 2123. 375× +÷ + +0.2×÷30.57 5+÷× ×÷ ÷× ×24 0.5×0.15×3.85.2×80%0.8 ×12÷0.1+ + + 二、解方程。 X×1=3.6 X= ×X=0 5X3×= 5X= 5×X=2 ×1+=250 -=0.3 += ×(1-)=550 10×X= 33÷X= X××=4 X×=18× 9.53.2×450x112.8 0.3x0.8×6072 5.9x2.4x7 5×1.32x5.5 5x21.83.6 7x1.22.13.2×450x112.8 0.3x0.8×60725.9 x2.4x7 5×1.32