问题 计算题
怎样简便就怎样算。
(1)45×97+45×3(2)483-154-46(3)68×103
(4)9.63-2.74+0.37-2.26(5)65.8-(15.8-6.9)(6)125×16×5
答案

(1)原式= 45×(97+3)

                = 45×100

                = 4500(2)原式= 483-(154+46)

                = 483-200

                =283

(3)原式=68×(100+3)

                =6800+204

                =7004

(4)原式=9.63+0.37-(2.74+2.26)

                =10-5

                =5(5)原式=65.8-15.8+6.9

                =50+6.9

                =56.9(6)原式=125×8×2×5

                =1000×2×5

                =10000

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