Less Challenging

• Add by making 10 with 9 as an addend

More Challenging

• 9 as an addend (2)

• Add crossing 10 within 20

• Equivalent number sentences

About This Sprint

Connect 3-addend addition sentences to add crossing the 10, e.g.

9 + 1 + 7 = ___

9 + 8 = ___