Question 64
MediumOriginal questionWhat is approximately equal to?
Show the answer and explanation
CorrectNot quiteAnswer D
Correct answer: D
Explanation
Multiply first: .
is just under , so .
Total .
Worth noting
Two-thirds of 900 is 600 because 900 divides cleanly by 3; pick rounding targets that divide easily. The exact value is about 669.8.
- Concept
- Estimating a product plus a near-perfect square root
- Typical timeTypical
- 50 s
- Your timeYours
- —
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