计算36×1.09+1.2×67.3=______.

1个回答

  • 解题思路:通过观察,把36看做1.2×30,进一步计算,得1.2×33.7+1.2×67.3,运用乘法分配律简算.

    36×1.09+1.2×67.3,

    =1.2×30×1.09+1.2×67.3,

    =1.2×(30×1.09)+1.2×67.3,

    =1.2×33.7+1.2×67.3,

    =1.2×(33.7+67.3),

    =1.2×100,

    =120;

    故答案为:120.

    点评:

    本题考点: 小数的巧算.

    考点点评: 凡是简算的题目,应仔细审题,根据数字特点,运用所学的运算定律,灵活简算.