?+5=22
72÷?=8
19=?–12
7+2=3+?
21×?=63
tysm

Answer:
1. 17 + 5 = 22
2. 72 ÷ 9 = 8
3. ?
4. ?
5. 21×3=63
Sorry i only know the 1,2 and 5 maybe next time
i borrowed my mom account
btw hope you can understand me