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Find 20% of 721.
Correct answer(s):
- 721/5
Reduce the fraction 28/84 to lowest terms.
Correct answer(s):
- 1/3
What is the remainder when 7887 is divided by 3?
Correct answer(s):
- 0
Evaluate 108^2 − 18^2 using an arithmetic identity.
Correct answer(s):
- 11340
Find the sum of the arithmetic sequence 28, 30, 32, …, 66.
Correct answer(s):
- 940
What is the units digit of 17^361?
Correct answer(s):
- 7
Calculate the number of trailing zeros in 130!.
Correct answer(s):
- 32
Find the remainder when 2^143 is divided by 23.
Correct answer(s):
- 1
Find the LCM of 37, 43, and 6.
Correct answer(s):
- 9546
Determine the GCD of 364 and 417 without using prime factor tables.
Correct answer(s):
- 1
Find 25% of 632.
Correct answer(s):
- 158
Reduce the fraction 18/44 to lowest terms.
Correct answer(s):
- 9/22
What is the remainder when 8333 is divided by 4?
Correct answer(s):
- 1
Find the sum of the arithmetic sequence 45, 49, 53, …, 157.
Correct answer(s):
- 2929
How many integers from 1 to 78 are coprime to 78?
Correct answer(s):
- 24
What is the units digit of 12^61?
Correct answer(s):
- 2
Calculate the number of trailing zeros in 240!.
Correct answer(s):
- 58
Find the number of positive divisors of 120.
Correct answer(s):
- 16
Find the remainder when 5^50 is divided by 17.
Correct answer(s):
- 8
Find the LCM of 15, 31, and 38.
Correct answer(s):
- 17670