3.10 (Parentheses) in Number Sentences. Homework Review.

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Presentation transcript:

3.10 (Parentheses) in Number Sentences

Homework Review

Mental Math Find the quotients to make each number sentence true. 12/2 = _____ 10 ÷ 10 = _____ 49/7 = _____ 27 ÷ 3 = ____ 720/9 = ____ 8,100 ÷ 90 = _____

Math Message Write your defense in your Math Notebook.

PARENTHESES show which operation to do first. Help me insert the parentheses to make each number sentence true.

Working through Number Sentences with Parentheses Rewrite each sentence below the original one with the term in the parentheses simplified.

Let’s try some more… Rewrite each number sentence on your whiteboard. Insert parentheses to make each number sentence true.

True or False…You Decide

Math Journal Partnership Work p 71. Part 1 Sample Problem: What operation do you do first? Why? What should you do next? Part 2 Sample Problem: The result is 16 because 16 is the product of 2 and 8. 8 is the difference of 15 and 7. What was done first? What was done second? Where do we insert parentheses?

Part 3 Sample Problem: Use all three numbers and parentheses to get the target number.

Tonight’s Homework

Math Boxes