OBJECTIVE: Practice composing doubles +/-1!
Click deal card, then click on cards to reveal a problem to solve. Type in the answer provided in the box below. Click the green check mark to see if you got it right! If you did not get it right, type a new answer and click the red x to check your work.
Practicing math facts 4 minutes per day leads to mastery.
This lesson corresponds with our more in-depth lessons available in Math Facts to Memory Volume 1.