You know there is 1 ten in Part A. How many more ones do you see in the image?
7 ones.
When you add 3 numbers, does it matter what order you add the numbers in? Explain your answer.
No; answers vary.
What are some of the different ways you can group the numbers in Part D to find the answer?
Possible response: Add
Does it matter what order you subtract numbers in? Explain your answer.
Yes, because you will get different answers depending on the order you subtract in.
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