Add Within 100 Using Two 2-Digit Numbers With No Regrouping 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 66? Select ALL that apply.

Find the missing number to make this equation true.

Click on the two sets of blocks that equal 84 when added together.

Find the sum of each expression and put them in order from least to greatest.

Jacob says that his equation of 21 + 55 = 76 matches the image below. Do you agree with Jacob? Explain.

Did Jo make a mistake when adding the two numbers below? If so, what mistake did she make and what should the answer be? Type in your answer below.