2.NBT.7
Give your child a pencil and a piece of paper.
Ask them to add 457+261.
They may use any strategy that they want.
If they are able to do it mentally, ask them to record their strategy (explain in writing - words or numbers - how they solved it).
Do the same with 683-367.
Ask them to add 457+261.
They may use any strategy that they want.
If they are able to do it mentally, ask them to record their strategy (explain in writing - words or numbers - how they solved it).
Do the same with 683-367.