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36×25=36□÷4

解: 36.25÷4.25x9.99 =36.25÷17/4x9.99 =36.25x4/17x9.99 =(36x4+0.25x4)x(10-0.01)÷17 =(144+1)x(10-0.01)÷17 =145x(10-0.01)÷17 =(145x10-145x0.01)÷17 =(1450-1.45)÷17 =1448.55÷17 =1700分之144855 =340分之28971 ≈85.208823...

36.72÷4.25x9.9 =8.16x9.9 =8.16×(10-0.1) =8.16×10-8.16×0.1 =81.6-0.816 =80.784

36除与三分之四

36.72÷4.25=8.64

除法的验算是乘法 36.4÷25=1.456 验算 1.456×25 =36.4

36.72÷4.25×99 =8.64×(100-1) =864-8.64 =855.36。

首先,x除以五分之四等于四分之五x,然后将四分之五移到方程右边,原本是乘以四分之五就变成除以四分之五,即二十五分之三十六除以四分之五, 也就是二十五分之三十六乘以四分之五,最后算出得数。

36×(4×25÷8) =(36÷8)×(4×25) =4.5×100 =450

36.72÷4.25×6.6 =8.64x6.6 =57.024

﹙36+4×25﹚÷4 =(36+100)÷4 =136÷4 =34

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