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Select 2 strategies that we can use to add 319 +291. Choose 2 answers: CORRECT (SELECTED) Add 320 + 290. INCORRECT (SELECTED) Add 319 + 300 + 9. Add 310 + 300.
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2 votes
Select 2 strategies that we can use to add 319 +291.

Choose 2 answers:
CORRECT (SELECTED)
Add 320 + 290.
INCORRECT (SELECTED)
Add 319 + 300 + 9.
Add 310 + 300.

User Paul Roub
by
3.5k points

1 Answer

6 votes

Answer:

I think it is 310 plus 300 and

320 plus 390

Explanation:

User Gaurav Tomer
by
3.5k points
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