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240➗32=多少列竖式计算

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12.6x7.6x2.32➗1.9➗1.4➗2.9如何用简便计算? 12.6x7.6x2.32➗1.9➗1.4➗2.9 =(12.6÷4)*(7.6÷1.9)*(2.32÷2.9) =3.15*4*0.8 =10.08

3.38÷18=0.187(7上面点个点,表示7循环) 2.3÷99=0.023(23上面点个点,表示23循环) 47 ÷ 22 = 2.136(36上面点个点,表示36循环) 竖式见图:

908➗32➖108➗32 =(908-108)➗32 =800/32 =800/8/4 =100/4 =25

114➗3=38,114➗4=28.5,126➗3=42,126➗4=32

脱式计算能简算的要简算8100➗3➗9 8100➗3➗9 =2700÷9 =300 直接计算

列式为: 0.2x0.2x0.2➗(0.04x0.04) =0.04x0.2➗0.04➗0.04 =(0.04➗0.04)x(0.2➗0.04) =1x5 =5

38➗14➕32➗14 =(38+32)➗14 =70➗14 =5

我想问那个是什么符号

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