问题 计算题
脱式计算,能简算的要简算。
(1)38.2+19.8+3.07(2)84.43-5.06-19.94
(3)73.45+(25.55-23.46)(4)28.26-(9.7-5.26)
(5)28.3-19.6+5.27(6)13.7+0.98+0.02+4.3
答案

(1)原式=58+3.07

                =61.07(2)原式=84.43-(5.06+19.94)

                =59.43

(3)原式=73.45+25.55-23.46

                =99-23.46

                =75.54(4)原式=28.26-(9.7-5.26)

                =28.26-4.44

                =23.82

(5)原式=8.7+5.27

                =13.97(6)原式=13.7+4.3+(0.98+0.02)

                =19

单项选择题
单项选择题