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77julia77 [94]
3 years ago
6

write an expression that can be used to find 4 times 275 using mental math and properties of numbers.

Mathematics
2 answers:
Karo-lina-s [1.5K]3 years ago
6 0
Rough estimate:  4 times 300 = 1200

Properties of numbers:  4 times (300-25) = 4 times 300 - 4 times 25
                                                                   =         1200   - 100
                                                                   =               1100 (exact answer)
sashaice [31]3 years ago
4 0
(200×4) + (70×4) + (5×4)
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Carlos is 33 years younger than Kristen. 2 years ago, Kristen's age was 2 times Carlos's age. How old is Carlos now?
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Carlos is 35 years old now

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Assume that Carlos is x years old now

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