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Using Break-Apart Products for Larger Numbers
“What if I already know most of the multiplication facts?” asked Jerome. “Why should I bother with the break‑apart method when I already know the answers?”
“You might know the answers to most of the facts problems,” said Mrs. Dewey. “But you probably don't know the answers to problems with larger numbers. The break-apart method can help you with a problem like 6 14.”
Jerome found 6 14 by breaking apart 14. He used a rectangle like this.
- How did Jerome break apart 14?
- Help Jerome complete number sentences for his rectangle. Copy the number sentences. Then fill in the blanks.
- Ming found 6 14 by breaking 14 into two different parts. He wrote this number sentence.
On a separate sheet of paper, sketch a rectangle that shows how Ming solved the problem. Label the parts.