口算:(1)0.1×0.1=(2)0.24×0.5=(3)5.4+3.6=(4)1.25-0.25=(5)6.45×0.01=(6)0×0.78=(7)2

2024-12-03 11:33:03
推荐回答(1个)
回答1:


(1)0.1×0.1=0.01 (2)0.24×0.5=0.12 (3)5.4+3.6=9
(4)1.25-0.25=1 (5)6.45×0.01=0.0645 (6)0×0.78=0
(7)2.5×8=20 (8)25×0.4=10 (9)99.9+1=100.9
(10)0.05×4=0.2 (11)0.3×0.9=0.27 (12)100×0.2=20
(13)5.8×5=29 (14)0.8×2.5=2 (15)0.125×4=0.5
(16)8.5×7=59.5 (17)0.5×0.6=0.3 (18)1.25-0.3=0.95