5392+3997 7362-2999 62.4÷2.5÷0.4 125÷(50÷8) 55×0.99 7.2×10.1 8÷125 的简便计算还有一题 12.5×56 3.72-(1.72+1.7) .拜托了、今天就要..呜呜、
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![5392+3997 7362-2999 62.4÷2.5÷0.4 125÷(50÷8) 55×0.99 7.2×10.1 8÷125 的简便计算还有一题 12.5×56 3.72-(1.72+1.7) .拜托了、今天就要..呜呜、](/uploads/image/z/243712-64-2.jpg?t=5392%2B3997+7362-2999+62.4%C3%B72.5%C3%B70.4+125%C3%B7%EF%BC%8850%C3%B78%EF%BC%89+55%C3%970.99+7.2%C3%9710.1+8%C3%B7125+%E7%9A%84%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E8%BF%98%E6%9C%89%E4%B8%80%E9%A2%98+12.5%C3%9756+3.72-%EF%BC%881.72%2B1.7%EF%BC%89+.%E6%8B%9C%E6%89%98%E4%BA%86%E3%80%81%E4%BB%8A%E5%A4%A9%E5%B0%B1%E8%A6%81..%E5%91%9C%E5%91%9C%E3%80%81)
5392+3997 7362-2999 62.4÷2.5÷0.4 125÷(50÷8) 55×0.99 7.2×10.1 8÷125 的简便计算还有一题 12.5×56 3.72-(1.72+1.7) .拜托了、今天就要..呜呜、
5392+3997 7362-2999 62.4÷2.5÷0.4 125÷(50÷8) 55×0.99 7.2×10.1 8÷125 的简便计算
还有一题 12.5×56 3.72-(1.72+1.7) .拜托了、今天就要..呜呜、
5392+3997 7362-2999 62.4÷2.5÷0.4 125÷(50÷8) 55×0.99 7.2×10.1 8÷125 的简便计算还有一题 12.5×56 3.72-(1.72+1.7) .拜托了、今天就要..呜呜、
5392+3997
=5392+4000-3
=9392-3
=9389
7362-2999
=7362-3000+1
=3362+1
=3363
62.4÷2.5÷0.4
=62.5/(2.5*4)
=62.5*10
=625
125÷(50÷8)
=125*8/50
=1000/50
=20
55×0.99
=55*(1-0.01)
55*1-55-0.01
=55-0.55
=54.45
7.2×10.1
=7.2*(10+0.1)
=7.2*10+7.2*0.1
=72+0.72
=72.72
8÷125
=(2*2*2)/(5*5*5)
=(2/5)*(2/5)*(2/5)
=0.4*0.4*0.4
=0.064
12.5×56
=12.5*8*7
=100*7
=700
3.72-(1.72+1.7)
=(3.72-1.72)-1.7
=2-1.7
=0.3