问题 计算题
脱式计算,能简算的要简算。
(1)0.9+1.08+0.92+0.1(2)32.54-10.46-4.54
(3)3.78+(6.22+4.72)(4)18.73+3.85-2.73
(5)6.07-4.36+5.49(6)45-(83.7-78.8)
答案
(1)原式=(0.9+0.1)+(1.08+0.92)
                =1+2
                =3(2)原式=32.54-(10.46+4.54)
                =32.54-15
                =17.54
(3)原式=3.78+6.22+4.72
                =10+4.72
                =14.72(4)原式=18.73-2.73+3.85
                =16+3.85
                =19.85
(5)原式=1.71+5.49

                =7.2(6)原式= 45.6-4.9

                = 40.7

单项选择题
单项选择题