问题 计算题
用简便算法计算下列各题。
(1)25×79×4(2)8×(7×125)
(3)15×63+15×37(4)75×98+2×75
(5)80×47×125(6)125×108
(7)367×125×8(8)101×25-25
答案

(1)原式=(25×4)×79

                =100×79

                =7900(2)原式=(8×125)×7

                =1000×7

                =7000

(3)原式=15×(63+37)

                =15×100

                =1500(4)原式=75×(98+2)

                =75×100

                =7500

(5)原式=(80×125)×47

                =10000×47

                = 470000(6)原式=125×(100+8)

                =12500+1000

                =13500

(7)原式=367×(125×8)

                =367×1000

                =367000(8)原式=(101-1)×25

                =100×25

                =2500

单项选择题
单项选择题