What will my child learn in "Add Two 2-Digit Numbers (Models)"?

To add 21 + 13: Combine the ones (1+3=4). Then combine the tens (2+1=3). The answer is 34. This 1st Grade Math lesson builds the skill Adding Two 2-Digit Numbers (No Regrouping) with a concept card and practice.

What grade level is "Add Two 2-Digit Numbers (Models)" for?

"Add Two 2-Digit Numbers (Models)" is a 1st Grade Math lesson in the 2-Digit Addition: No Regrouping unit, designed for students around ages 6-7.

How many practice questions are in this lesson?

This lesson includes 40 practice questions with instant feedback. Guests can try a few for free, and signed-in learners get the full adaptive set that adjusts to their level.

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Add Two 2-Digit Numbers (Models)

1st Grade Math practice: Find 14 + 22 using base ten blocks.. Part of 2-digit addition: no regrouping (2-Digit Addition: No Regrouping).

~10 min

To add 21 + 13: Combine the ones (1+3=4). Then combine the tens (2+1=3). The answer is 34.