问题 计算题
递等式计算。(能简算的要简算)
(1)8.3+6.2+1.7(2)96×8+32(3)73.26-(18.9+3.26)
(4)87×25×4(5)(125+4)×8(6)21.4-15.32-4.68+4.6
(7)6.75-2.9-3.1(8)25×25×16(9)125×(860+240÷12)
(10)23.61+5.7-3.61(11)45×37+73×45-10×45
答案

(1)原式=8.3+1.7+6.2

                =16.2

       (2)原式=96×8+4×8

                =(96+4)×8

                =800(3)原式=73.26-3.26-18.9

                =70-18.9

                =51.1

(4)原式=25×4×87

                =8700

         (5)原式=125×8+4×8

                =1032

         (6)原式=21.4+4.6-(15.32+4.68)

                =26-20

                =6

(7)原式=6.75-(2.9+3.1)

                =0.75

               (8)原式=25×4×25×4

                =10000

      (9)原式=125×(860+20)

                =125×8×110

                =110000

(10)原式=23.61-3.61+5.7

                  =25.7(11)原式= 45×(37+73-10)

                  = 4500

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