1.135+3.346+5.557+7.768+9.979简便算法怎么做

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1.135+3.346+5.557+7.768+9.979简便算法怎么做
1.135+3.346+5.557+7.768+9.979简便算法怎么做

1.135+3.346+5.557+7.768+9.979简便算法怎么做
求式=（1135+3346+5557+7768+9979）÷1000
=[（1000+3000+5000+7000+9000）+(135+346+557+768+979)]÷1000
=[25×1000+（200-65）+（400-54）+（600-43）+(800-32)+(1000-21)]÷1000
=[28×1000-215]÷1000
=28-0.215
=27.785

简便运算1.135+3.346+5.557+7.768+9.979 简便计算1.135+3.346+5.557+7.768+9.979=? 1.135+3.346+5.557+7.768+9.979简便算法怎么做 1.41.2×8.1+11×9.25+537×0.192.55555×666667+44445×666666-1555553.0.4×[11/52÷2又3/4×（4.3-1.8）]×264.（2×4×8×16×32）×（25×6.25×1.25×0.25）5.85.42×7903.29-286.5×790.329+79032.9×4.3236.1.135+2.246+3.346+4.475+5.557+6.768+7.768+8 1.135+3.3465.557+7.768+9.979怎么解答? 7. 7. 7. 7. 7. 7. 7. -7.45,-0.5,-1.135.像这样的数都是负整数吗 0.327和5.557和36.558和9.990和8.999和6.000和15.692(保留两位小数)是多少? 101*7. 101*7. 轮胎7. 5.6.7.