奥数五年级简便的计算练习题(2)
(16)16.4-16.4×0.5
(17)2.18+4.65+7.82+4.35 (18)12.48-2.72-3.28
(19)(250+2.5)×4 (20)4×7×0.5×3×5
(21)(125+1.25)×8 (22)775+10.9+9.1+225
(23)(0.45+0.06+1.5)÷0.15
(24)2.75÷54+2. 65÷54
(25)1.25×8.8 (26)0.89×10.1
(27)25×5.26×40 (28)0.125×32×25
(29)0.36×0.5+0.36×0.4+0.36×0.1
(30)0.38+13.4+1.62+4.6