3.6*3.14+43.9*6.4 简便运算

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3.6*3.14+43.9*6.4简便运算3.6*3.14+43.9*6.4简便运算3.6*3.14+43.9*6.4简便运算3.6*3.14+43.9*6.4=(10-6.4)*3.14+43.9*

3.6*3.14+43.9*6.4 简便运算
3.6*3.14+43.9*6.4 简便运算

3.6*3.14+43.9*6.4 简便运算
3.6*3.14+43.9*6.4
=(10-6.4)*3.14+43.9*6.4
=31.4+(43.9-3.14)*6.4
=31.4+40.76*6.4
=31.4+260.846
=292.264