六年级简便运算

3个回答

  • 简算:

    45.55-(6.82+15.55) 34.52-17.87-12.23 6.43-(1.4-0.57)

    23.75-8.64-3.46 17.83-9.5-7.83-0.5 5.38+88.2-2.38+1.8

    27.38-5.34+2.62-4.66 21.63-(8.5+9.63) 7.5-2.45+7.5+2.45

    0.9+0.99+0.999 5.09-(0.09+1.23) 9.36-(4.36-3.5)

    609-708+306-108+202-198+497-100 14+15+16+……+45+46

    9999+9998+9997+9996 99999×26+33333×22

    19175÷59+678 36.5×1.4-8.51÷3.7 1.3-3.79+9.7-6.21

    8×0.4×12.5×2.5 125×(8+0.8+0.08) 35 ÷〔78 -(25 +38 )〕

    1.7+150 +3.98 17.625-(4.4+58 ) 3.35×6.47×2+6.7×3.6

    18.7-3.375-6.625 2.5×4.4

    25×1.25×32 (3.75+4.1+2.35)×9.8

    1.28+9.8+7.72+10.2 12 ×1120 +12 ×2049