Lesson: Adding Ones to Two-Digit Numbers without Regrouping

In this lesson, we will learn how to add a one-digit number to a two-digit number without crossing a ten and model this with place value equipment.

Sample Question Videos

Q1:

There are 20 people in a swimming pool. If two more jump in, how many people will be there in the swimming pool?

Q2:

There should be the same number of blocks on each side of the equal sign. How many blocks should be in the empty square?

Q3:

There are 34 students playing in the park. Noah, Liam, and James decided to join them. Find the total number of students.

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