求这两题的列式和答案
求这两题的列式和答案
求这两题的列式和答案
求这两题的列式和答案
1 4.8* 2.5 +4.4*2.5+31.5=54.5 * 代表乘号2 (12+15)X20=540(1 ) 4.8X 2.5 +4.4X2.5+31.5=54.5
(2 ) (12+15)X20=540
求这两题的列式和答案
求这两题的列式和答案
求这两题的列式和答案
1 4.8* 2.5 +4.4*2.5+31.5=54.5 * 代表乘号2 (12+15)X20=540(1 ) 4.8X 2.5 +4.4X2.5+31.5=54.5
(2 ) (12+15)X20=540