Teachers, save “Addition to 20 (Commutative Law)” to assign it to your class.

Using commutative law to add numbers together in any order to achieve the total. LI: We have been learning to use commutative law when adding. SC: We can add the numbers in any order to get the same total. We can use different strategies to fill in missing number sums. We can create our own set of addition sums using commutative law. 1. Tap 2. Use the ten frames and the numbers you have in each sum to show both addition sums you can create. Remember, we can add in any order and the answer will be the same. 3. Complete each page. 4. When you are finished, tap