【急求】小学五年级速算练习题(简算、巧算)

4个回答

  • 1.5.467+3.814+7.533+4.186

    2.6.25×1.25×6.4

    3.3.997+19.96+1.9998+199.7

    4.0.1+0.3+…+0.9+0.11+0.13+0.15+…+0.97+0.99

    5.199.9×19.98-199.8×19.97

    6.23.75×3.987+6.013×92.07+6.832×39.87

    *7.20042005×20052004-20042004×20052005

    *8.(1+0.12+0.23)×(0.12+0.23+0.34)-(1+0.12+0.23+0.34)×(0.12+0.23)

    1.6.734-1.536+3.266-4.464

    2.0.8÷0.125

    3.89.1+90.3+88.6+92.1+88.9+90.8

    4.4.83×0.59+0.41×1.59-0.324×5.9

    5.37.5×21.5×0.112+35.5×12.5×0.112