10.76-0.83+1.24-4.17 3.5/0.56 45/0.18 81.3-81.3x0.9 这几题的简便计算怎样算
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![10.76-0.83+1.24-4.17 3.5/0.56 45/0.18 81.3-81.3x0.9 这几题的简便计算怎样算](/uploads/image/z/34724-20-4.jpg?t=10.76-0.83%2B1.24-4.17+3.5%2F0.56+45%2F0.18+81.3-81.3x0.9+%E8%BF%99%E5%87%A0%E9%A2%98%E7%9A%84%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E6%80%8E%E6%A0%B7%E7%AE%97)
10.76-0.83+1.24-4.17 3.5/0.56 45/0.18 81.3-81.3x0.9 这几题的简便计算怎样算
10.76-0.83+1.24-4.17 3.5/0.56 45/0.18 81.3-81.3x0.9 这几题的简便计算怎样算
10.76-0.83+1.24-4.17 3.5/0.56 45/0.18 81.3-81.3x0.9 这几题的简便计算怎样算
10.76-0.83+1.24-4.17
=(10.76+1.24)-(0.83+4.17)
=12-5
=7
3.5/0.56
=3.5÷(0.7×0.8)
=3.5÷0.7÷0.8
=5÷0.8
=6.25
45/0.18
=45÷(0.9×0.2)
=45÷0.9÷0.2
=50÷0.2
=250
81.3-81.3x0.9
=81.3×(1-0.9)
=81.3×0.1
=8.13
10.76-0.83+1.24-4.17
=(10.76+1.24)-(0.83+4.17)
=12-5
=7
3.5/0.56
=0.5*7/(7*0.08)
=0.5/0.08
=25/4
45/0.18
=5*9/(0.02*9)
=5/0.02
=250
81.3-81.3x0.9
=81.3*(1-0.9)
=81.3*0.1
=8.13
第三题:2.24×0.18÷3.5 =7×0.32×0.18÷3.5 =2×0.32×0.=0.128-0.0128 =0.1152 开玩笑 这门简便方法
额。第一个 = (10.76+1.24)-(0.83+4.17)
二:=5/0.8
三:=4500/18=500/2=250
四:=81.3*(1-0.9)=81.3*0.1=8.13
10.76-0.83+1.24-4.17
=(10.76+1.24)- (0.83+4.17)
=12 - 5
=7
3.5/0.56
= 5×0.7/(0.7×0.8)
= 5/0.8
= 6.25
45/0.18
= 45/(9×0.02)
= 5/0.02
= 250
81.3-81.3x0.9
=81.3×(1-0.9)
=81.3×0.1
=8.13