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Determine the highest common factor (HCF) of 84 and 126.
Correct answer(s):
- 42
Find the least common multiple (LCM) of 24 and 36.
Correct answer(s):
- 72
What is the smallest whole number that must be added to 1,234 to make the sum divisible by 9
Correct answer(s):
- 8
Find the value of the digit 6 in the number 7,632.
Correct answer(s):
- 600
Find the remainder when 7^100 is divided by 6.
Correct answer(s):
- 1
From the list below, select all numbers that are factors of 72.
Correct answer(s):
- 3
- 8
- 9
- 12
Arrange the numbers -3/4, -0.6, -2/3 in ascending order (from smallest to largest).
Correct answer(s):
- -3/4, -2/3, -0.6
Select the number that is irrational from the list: √2, 22/7, 0.333…, 0.125.
Correct answer(s):
- √2
Express 0.727272… (where 72 repeats) as a simplified fraction.
Correct answer(s):
- 8/11
Which of the following expresses the prime factorization of 360 in exponent form
Correct answer(s):
- 2^3 × 3^2 × 5
Find the highest common factor (HCF/GCD) 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 84,719.
Correct answer(s):
- 700
Choose all prime numbers from the list: 17, 21, 29, 35.
Correct answer(s):
- 17
- 29
Round the number 4,367 to the nearest hundred.
Correct answer(s):
- 4,400
Find 15% of 240.
Correct answer(s):
- 36
Calculate the value of 12 – 3 × (4 + 1).
Correct answer(s):
- -3
Select the prime factorization of 84 from the choices below.
Correct answer(s):
- 2^2 × 3 × 7
Which of the following decimals is a repeating decimal
Correct answer(s):
- 0.333...
Express the fraction 5/8 as a decimal.
Correct answer(s):
- 0.625