56 + 19 -8
= 75 − 8
= 67
竖式请见图：
56+19 = 75
7 5
- 8
6 7
75-8 = 67
56+19-8
=75-8
=67
56+19-8=67回答完毕~~有疑问请追问，无疑问请点击【采纳】~祝学习进步~~~\(^o^)/~
19-8=1111+56=67
