Unit 5 open response
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Last updated almost 5 years ago
4 questions
5
Sonja is learning how to use more efficient strategies for multiplication. She learned about adding or subtracting a group, doubling, and near squares.
She used the adding-a-group strategy to solve 6 x 7 = ?. She explained:"I will use the helper fact 5 x 7. I know that 5 x 7 = 35. I can add one more group of 7 to 35 to get 42. I now have 6 groups of 7, so I know 6 x 7 = 42.
Use a picture to show how Sonja solved the problem.
Sonja is learning how to use more efficient strategies for multiplication. She learned about adding or subtracting a group, doubling, and near squares.
She used the adding-a-group strategy to solve 6 x 7 = ?. She explained:
"I will use the helper fact 5 x 7. I know that 5 x 7 = 35. I can add one more group of 7 to 35 to get 42. I now have 6 groups of 7, so I know 6 x 7 = 42.
Use a picture to show how Sonja solved the problem.
5
Explain how your picture matches Sonja's explanation.
Explain how your picture matches Sonja's explanation.
5
Choose at least one other efficient multiplation strategy, such as doubling or near square, to solve 6 x 7 = ?. Use pictures to show how you solved the problem.
Choose at least one other efficient multiplation strategy, such as doubling or near square, to solve 6 x 7 = ?. Use pictures to show how you solved the problem.
5
Use words to show how you solved the problem.
Use words to show how you solved the problem.