Worksheet: Adding Ones to Two-Digit Numbers without Regrouping

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In this worksheet, we will practice adding a one-digit number to a two-digit number without crossing a ten and model this with place value equipment.

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.

Q4:

Find the missing number to make the equation correct.

Q5:

Is , or ?

Q6:

Find the sum.

Hint: Add the ones then the tens.

Q7:

Complete the following: .