4.8÷0.3 (9.6-1.4×3.5)÷0.5的簡便計算?
(9.6-1.4×3.5)÷0.5的簡便計算?(9.6?1.4?3.5)?0.5=(9.6?1.4?3.5)??2=9.6??2?1.4??3.5??219.2?1.4??(3.5??2)=19.2?
(9.6-1.4×3.5)÷0.5的簡便計算?
(9.6?1.4?3.5)?0.5
=(9.6?1.4?3.5)??2
=9.6??2?1.4??3.5??2
19.2?1.4??(3.5??2)
=19.2?1.4??7
=19.2?9.8
=9.4