(1)(33221-332.21)÷(66442-664.42)(2)(2002002+200.2002)÷(8008008+800.8008)(3) (1234+123.4-12.34)-(2468+246.8-24.68)简便算法,如:(44332-443.32)÷(88664-886.64)=(44332-443.32)÷[(44332-443.32)×2] =(44332-443.32)÷(44332-443.32)÷2= 1÷2= 0.5快,

问题描述:

(1)(33221-332.21)÷(66442-664.42)
(2)(2002002+200.2002)÷(8008008+800.8008)
(3) (1234+123.4-12.34)-(2468+246.8-24.68)
简便算法,如:
(44332-443.32)÷(88664-886.64)
=(44332-443.32)÷[(44332-443.32)×2]
=(44332-443.32)÷(44332-443.32)÷2
= 1÷2
= 0.5
快,