Add Within 100 Using A 2-Digit Number and a 1-Digit Number Introduction

Find the sum.

What equation is the number line showing?

Solve this addition problem. Type in your answer.

Type in the equation represented by these place value blocks.

Which expressions are equal to 34? Select ALL that apply.

Find the missing number to make this equation true.

Click on the two fruits in the table with a sum of 22.

Show that each sum is less than 40, equal to 40, or greater than 40.

Billy says that these sets of blocks are equal to each other. Do you agree? Explain.

Raul tried to solve 17 + 8 but made a mistake. Look at his work below. Type in his mistake and the correct answer.