急求20道小学简便运算题!

5个回答

  • 6.9+4.8+3.1

    0.456+6.22+3.78

    15.89+(6.75-5.89)

    4.02+5.4+0.98

    5.17-1.8-3.2

    13.75-(3.75+6.48)

    3.68+7.56-2.68

    7.85+2.34-0.85+4.66

    35.6-1.8-15.6-7.2

    3.82+2.9+0.18+9.1

    9.6+4.8-3.6

    7.14-0.53-2.47

    5.27+2.86-0.66+1.63

    13.35-4.68+2.65

    73.8-1.64-13.8-5.36

    47.8-7.45+8.8

    0.398+0.36+3.64

    15.75+3.59-0.59+14.25

    66.86-8.66-1.34

    0.25×16.2×4