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Mathematics, 04.06.2020 20:58 Killakyle4744

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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Select 2 strategies that we can use to add 319 +291. Choose 2 answers:
CORRECT (SELECTED)
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