How to solve the change unknown

                              watch this video to find out how to solve                             the change unknown.

          See if you can solve some of these problems                                      yourself

                                   1.)53+?=64

                                   2.)97+?=106

                                    3.)15+9=?

Finding the change unknown.

This is how you solve the change unknown.

See if you can awnser these yourself after watching this video.

1.)55+?=62

2.)64+?=73

3.)27+?=32

4.)35+?=49

5.)83+?=96

6.)75+?=87

7.)11+?=25