3.75×9.8+3.75×0.2 2.6×(2.3+4.25÷2.5) 999.999÷666.666 (简便计算)
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3.75×9.8+3.75×0.2 2.6×(2.3+4.25÷2.5) 999.999÷666.666 (简便计算)
![3.75×9.8+3.75×0.2 2.6×(2.3+4.25÷2.5) 999.999÷666.666 (简便计算)](/uploads/image/z/17932889-65-9.jpg?t=3.75%C3%979.8%2B3.75%C3%970.2+2.6%C3%97%EF%BC%882.3%EF%BC%8B4.25%C3%B72.5%EF%BC%89+999.999%C3%B7666.666+%EF%BC%88%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%EF%BC%89)
3.75×9.8+3.75×0.2=3.75×(9.8+0.2)=3.75×10=37.5
2.6×(2.3+4.35÷2.5)=2.6×(2.3+1.7)=2.6×4=10.4
999.999÷666.666=999999÷666666=1.5
后两个用简便方法还不如直接算来得快呢
2.6×(2.3+4.35÷2.5)=2.6×(2.3+1.7)=2.6×4=10.4
999.999÷666.666=999999÷666666=1.5
后两个用简便方法还不如直接算来得快呢