Express the repeating decimal 0.777… (0.) as a fraction in simplest form.
Correct answer(s):
- 7/9
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Which of the following numbers are prime: 15, 17, 19, 21 Select all that apply.
Correct answer(s):
- 17
- 19
Calculate the least common multiple (LCM) of 9 and 12.
Correct answer(s):
- 36
Find the greatest common divisor (GCD) of 84 and 126.
Correct answer(s):
- 42
Find the value of the digit 7 in the number 58,732.
Correct answer(s):
- 700
Determine the smallest prime factor of 231.
Correct answer(s):
- 3
Express 7/12 as a decimal rounded to three decimal places.
Correct answer(s):
- 0.583
Which of the following numbers are divisible by 3? Select all that apply.
Correct answer(s):
- 123
- 99
- 456
The product of two numbers is 240 and one of the numbers is 15. Find the other number.
Correct answer(s):
- 16
Calculate the sum of the first five prime numbers.
Correct answer(s):
- 28
Express the decimal 0.625 as a fraction in simplest form.
Correct answer(s):
- 5/8
Simplify the fraction 42/56 to its lowest terms.
Correct answer(s):
- 3/4
Find the greatest common divisor (GCD/HCF) of 84 and 126.
Correct answer(s):
- 42
Calculate the least common multiple (LCM) of 18 and 24.
Correct answer(s):
- 72
Find the value of the digit 7 in the number 58,742.
Correct answer(s):
- 700
Select all rational numbers from the list: √2, 0.125, 1/3, π, 0.
Correct answer(s):
- 0.125
- 1/3
- 0
Calculate the sum of the first 10 natural numbers.
Correct answer(s):
- 55
Find 15% of 240.
Correct answer(s):
- 36
Arrange these numbers in ascending order: -1.2, 2.5, -3, 0.
Correct answer(s):
- -3, -1.2, 0, 2.5
Select all numbers divisible by 3 from the list: 123, 245, 999, 1,234, 1,500.
Correct answer(s):
- 123
- 999
- 1,500