问题 计算题
用简便方法计算。
(1)4.35+8.6+15.65+1.4(2)19.32-5.56-3.44
(3)37.6-(7.6+3.25)(4)5.49+2.68-3.49
(5)6.27+3.83+1.73(6)8.4+3.5-8.4+3.5
答案

(1)原式= 4.35+15.65+(8.6+1.4)

                =30(2)原式=19.32-(5.56+3.44)

                =10.32

(3)原式=37.6-7.6-3.25

                =26.75(4)原式=5.49-3.49+2.68

                = 4.68

(5)原式=6.27+1.73+3.83

                =11.83(6)原式=8.4-8.4+3.5+3.5

                =7

单项选择题
单项选择题