Addition/Subtraction- Laps of the Oval Fun

https://www.youtube.com/watch?v=IQL68GAhoAs

The Action of Subtraction

Explore:

Work in a group of 2:

You have to run 20 laps of the oval over three days. How many laps do you run on each day so that you run 20 over the three days.

Prove your workings:

Show this on a diagram

Show this using tens frames

Show this on a number line

Show in your own way

Enabling 10

Extending 35 laps and need to show how many each pair ran on each day.

Extending- You are doing this over 5 days.