Check the slide again before completing worksheet. The answers are in your modelling book

Complete worksheet that was handed out to you. (Page 50)

The answers are in your modelling book. Make sure you have assessed before our next meeting.

Success Criteria:

• Put the numbers in the right place.
• Always start with the ones.
• Next go on to add the 10s.
• Don’t forget that you’re adding 10s now!
• Then add the 100s and total it all up!

S.C 1) Think of the tidy number

2) Adjust both numbers equally

3) Work out problem mentally

Example 453-298=455-300-155