问题 计算题
怎样简便就怎样计算。
(1)285+74+115+226(2)63+152+137+148
(3)394-157-43(4)69×101
(5)320×25×125(6)65×4×25
(7)960÷24÷4(8)147×57+43×147
答案

(1)原式=(285+115)+(74+226)

                = 400+300

                =700(2)原式=(63+137)+(152+148)

                =200+300

                =500

(3)原式=394-(157+43)

                =394-200

                =194(4)原式=69×100+69

                =6900+69

                =6969

(5)原式= 40×25×8×125

                =1000×1000

                =1000000(6)原式=65×(4×25)

                =65×100

                =6500

(7)原式=960÷4÷24

                =240÷24

                =10(8)原式=147×(57+43)

                =147×100

                =14700

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