简便运算
3.67×9.9+0.367
=0.367×99+0.367
=0.367×（99+1）
=0.367×100
=36.7
0.367乘以9.9 加3.67简便用算
=3.67×0.99+3.67×1
=3.67×（0.99+1）
=3.67×（2-0.01）
=3.67×2-3.67×0.01
=7.34-0.0367
=7.3033
=3.67*（0.99+1）
=3.67*2-3.67*0.01
=7.34-0.0367
=7.3034
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