题目内容
11+88+66+33+77+55=
330
330
.分析:通过观察,每个数都是11的倍数,把原式变为11+11×8+11×6+11×3+11×7+11×5,运用乘法分配律简算.
解答:解:11+88+66+33+77+55,
=11+11×8+11×6+11×3+11×7+11×5,
=11×(1+8+6+3+7+5),
=11×30,
=330;
故答案为:330.
=11+11×8+11×6+11×3+11×7+11×5,
=11×(1+8+6+3+7+5),
=11×30,
=330;
故答案为:330.
点评:完成此题,注意数字转化,运用运算定律,灵活简算.
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