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用简便方法计算.355+260+140+245(125+15)×899×25+2548×73+48×2732×125125×(100+8)(125×25)×435×68+35×36-4×35

题目详情
用简便方法计算.
355+260+140+245

(125+15)×8

99×25+25

48×73+48×27
32×125125×(100+8)(125×25)×435×68+35×36-4×35
▼优质解答
答案和解析
(1)355+260+140+245
=(355+245)+(260+140)
=600+400
=1000

(2)(125+15)×8
=125×8+15×8
=1000+120
=1120

(3)99×25+25
=(99+1)×25
=100×25
=2500

(4)48×73+48×27
=48×(73+27)
=48×100
=4800

(5)32×125
=4×8×125
=4×(8×125)
=4×1000
=4000

(6)125×(100+8)
=125×100+125×8
=12500+1000
=13500

(7)(125×25)×4
=125×(25×4)
=125×100
=12500

(8)35×68+35×36-4×35
=35×(68+36-4)
=35×100
=3500