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9/7 - Warmup

Last updated about 2 years ago
4 questions
1
What is the value of the underlined digit?

45,982 → __________

73,562 → __________

523,479 → __________
1
Estimate to the nearest ten.

53 + 28 → __________ + __________ = __________

65 - 14 → __________ - __________ = __________
1
Estimate to the nearest hundred.

621 + 284 → __________ + __________ = __________

635 - 164 → __________ - __________ = __________
1
Solve

15 + 21 = _______ 89 - 15 = _______ 42 + 31 = _______