一天,爷爷接我放学回家,开门时,发现从门上飞下来一张小纸条。我连忙打开来一看,哦,原来是张液化气抄表单。我把单子递给了爷爷,爷爷看了看,便对我说:“你能不能帮我算一下我们这个月用了多少煤气费啊?”我粗略看了一下后,就对爷爷说:“每立方米的煤气是14.5元,这个月一共用了568立方米,所以用568×14.5,应该是8236元。”说完我心里有点沾沾自喜,心想:怎么着,爷爷看我算得这么快,也 One day, my grandfather picked me home from school and opened the door and found a small piece of paper flying down the door. I quickly opened to see, oh, it turned out to be a liquefied gas copy form. I handed the list to my grandfather, my grandfather looked at it and said to me: “Could you count me how much gas we spent this month?” “After a rough look, I said to my grandfather : ”Gas per cubic meter is 14.5 yuan, a total of 568 cubic meters this month, so with 568 × 14.5, it should be 8236 yuan." Finish my heart a little complacent, I thought: how grandfather looked at me count So fast, too