What is the remainder when 9470 is divided by 12?
Correct answer(s):
- 2
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Evaluate 72^2 − 30^2 using an arithmetic identity.
Correct answer(s):
- 4284
Find the sum of the arithmetic sequence 10, 16, 22, …, 184.
Correct answer(s):
- 2910
How many integers from 1 to 90 are coprime to 90?
Correct answer(s):
- 24
What is the units digit of 9^367?
Correct answer(s):
- 9
Calculate the number of trailing zeros in 120!.
Correct answer(s):
- 28
Find the remainder when 13^77 is divided by 23.
Correct answer(s):
- 1
Find the LCM of 31, 14, and 19.
Correct answer(s):
- 8246
Determine the GCD of 357 and 367 without using prime factor tables.
Correct answer(s):
- 1
Find 10% of 257.
Correct answer(s):
- 257/10
Reduce the fraction 40/84 to lowest terms.
Correct answer(s):
- 10/21
What is the remainder when 5334 is divided by 8?
Correct answer(s):
- 6
Evaluate 108^2 − 42^2 using an arithmetic identity.
Correct answer(s):
- 9900
Find the sum of the arithmetic sequence 26, 28, 30, …, 64.
Correct answer(s):
- 900
What is the units digit of 9^538?
Correct answer(s):
- 1
Find the number of positive divisors of 216.
Correct answer(s):
- 16
Find the remainder when 4^78 is divided by 13.
Correct answer(s):
- 1
Find the LCM of 34, 19, and 36.
Correct answer(s):
- 11628
Determine the GCD of 495 and 387 without using prime factor tables.
Correct answer(s):
- 9
Find 20% of 721.
Correct answer(s):
- 721/5