Solving Multi-step Multiplication and Division Problems

This video tutorial covers the third-grade concept of multi-step multiplication and division problems, specifically focusing on a problem from the 2019 released STAR test. The instructor guides students through visualizing the problem using drawings, solving it step-by-step, and analyzing common mistakes that lead to incorrect answers. The video emphasizes understanding equal groups in multiplication and division and provides multiple methods to arrive at the correct solution.

What grade level is the multi-step multiplication and division problem designed for?

• Fifth Grade

• Fourth Grade

• Third Grade

• Second Grade

How many packages of mint gum did Gerardo decide to buy?

• Five packages

• Three packages

• Two packages

• Four packages

What is the total number of gum pieces Gerardo will have if each package contains 8 pieces?

• 56 pieces

• 32 pieces

• 40 pieces

• 48 pieces

Which operation is primarily used to solve the problem presented in the video?

• Addition

• Subtraction

• Multiplication

• Division

What is the result of 3 packages of mint gum each having 8 pieces?

• 24 pieces

• 32 pieces

• 11 pieces

• 40 pieces

How many pieces of bubble gum does Gerardo have if he buys two packages and each contains 8 pieces?

• 16 pieces

• 32 pieces

• 8 pieces

• 24 pieces

What incorrect calculation might lead to an answer of 26 pieces of gum?

• 3 packages of 8 minus 2

• 3 packages of 8 plus 2

• 3 packages of 8 multiplied by 2

• 3 packages of 8 divided by 2

Why is dividing the number of mint packages by 2 incorrect in solving this problem?

• It underestimates the amount of gum

• It overestimates the amount of gum

• It incorrectly applies division to an addition problem

• It uses the wrong numbers

What is the correct total number of gum pieces Gerardo buys?

• 24 pieces

• 32 pieces

• 40 pieces

• 48 pieces

What error leads to the incorrect answer of 48 pieces?

• Dividing instead of adding

• Subtracting instead of adding

• Adding instead of multiplying

• Multiplying all numbers together