计算下列各题.38.83÷4.4-7.85 16.8+14.7÷0.7 2.48+4.832÷1

1个回答

  • 解题思路:(1)先算除法,再算减法;

    (2)先算除法,再算加法;

    (3)先算除法,再算加法;

    (4)按照从左向右的顺序进行计算;

    (5)按照从左向右的顺序进行计算;

    (6)按照从左向右的顺序进行计算.

    (1)38.83÷4.4-7.85,

    =8.825-7.85,

    =0.975;

    (2)16.8+14.7÷0.7,

    =16.8+21,

    =37.8;

    (3)2.48+4.832÷1.6,

    =2.48+3.02,

    =5.5;

    (4)0.64÷1.6÷0.5,

    =0.4÷0.5,

    =0.8;

    (5)3.2×6.5÷0.26,

    =20.8÷0.26,

    =80;

    (6)2.61÷1.8×0.4,

    =1.45×0.4,

    =0.58.

    点评:

    本题考点: 小数四则混合运算.

    考点点评: 此题主要考查小数的四则混合运算的运算顺序,然后根据运算顺序进行计算.