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(%4.66)×9/4%5.34÷4/9 5×(3/5)? 0×56 7/1×8/1

4.66*(-4/9)-5.34/9/4+5*(-2/3)^2 = 0.00277777777778

(-4.66)x4/9-5.34÷9/4 =(-4.66)x4/9-5.34*49 =(-4.66-5.34)x4/9=-10x4/9=-40/9=-4又4/95x(2/3)+0x53又1/7x1/8=10/3+0=3又1/3

确定你的顺序,括号没问题答案就是12.5 ,1,35,10/91,7/5,最后一道是3/11*5+8/11*5吧,=5.看你前面的像是小学的题,主要是考约分和混合运算的,如果你没有写错的话最后一道答案是4055,先算乘除后算加减,先算括号内的后算外的,慢慢约分,慢慢算

1624÷56 =1624÷8÷7=203÷=29 5/8-1/4 =5/8-2/8=3/8 5/6*4/7 =10/21 4.5*5.02 =4.5*(5+0.02)=4.5*5+4.5*0.02=22.5+0.09=22.59 1/5÷3/4=1/5*4/3=4/15 别忘采纳哦

7分之3*4分之1+7分之4*0.75+7分之5*75%=3/7x1/4+4/7x3/4+5/7x3/4=3/4x(1/7+4/7+5/7)=3/4x10/7=15/14; 9分之5除【6分之5*(9分之7-3分之1)】=5/9÷[5/6x(7/9-3/9)]=5/9÷【5/6x4/9]=5/9÷10/27=5/9x27/10=3/2; 8分之7除9*5分之3除72分之35=7/8x1/9x3/5x72/35= 3/25; (7分之5+6分之5-14分之3)除42分之5 =5/7x42/5+5/6x42/5-3/14x42/5=6+7-9/5=13-1.8=11.2

17.8-20.4*1/5=17.8-4.08=13.72直接计算25%*8/9+3/4÷9/8=1/4*8/9+3/4*8/9=(1/4+3/4)*8/9=8/9乘法分配律供参考

(1)原式=9-4 =5 (2)原式=69-45 =24 (3)原式=56÷7 =8 (4)原式缉旦光秆叱飞癸时含江=7*5 =35 (5)原式=35÷5 =7 (6)原式=68-27 = 41

56!

30÷5=6 42÷6=7 5*9÷5=9 64÷8=8 32÷4=8 81÷9=9 7÷7=1 25÷5=5 56÷7=8 24÷8=3 72÷8=9 21÷7=3 45÷9=5 30÷6=5 40÷5=8 72÷9=8 4+12÷6=6 63÷9*2=14 18÷2*6=54 12÷(2+4)=2

3*(3*4)*(4*5)/(5*6)*(6*7)/(7*8)*(8*9)=3*12*20/30*42/56*72=36*20/30*42/56*72=720/30*42/56*72=24*42/56*72=1008/56*72=18*72=1296

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