1.	78 = 70 + − 3 = 70 +
2.	89 = + 9 − 54 = + 4 + 5
3.	67 = + 7 − 45 = 40 + 5 +
4.	95 = 90 + 5 − 63 = 60 + +

5.	Tens Ones 6 − 8 5
6.	Tens Ones 9 − 4 2
7.	Tens Ones 8 − 5 6 2
8.	Tens Ones 7 − 4 9 6