Find the least common multiple (LCM) of 12, 15, and 20.
Correct answer(s):
- 60
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Find the value of the digit 5 in the number 58,705.
Correct answer(s):
- 50,000
Find the remainder when 2^10 is divided by 5.
Correct answer(s):
- 4
Calculate the value of (-3) × (-4) × 5.
Correct answer(s):
- 60
Which of the following decimals is the smallest: 0.305, 0.35, 0.295, 0.3055.
Correct answer(s):
- 0.295
If 15% of a number equals 45, find the original number.
Correct answer(s):
- 300
Express the repeating decimal 0.272727… (with ’27’ repeating) as a fraction in lowest terms.
Correct answer(s):
- 3/11
Find the highest common factor (HCF) or greatest common divisor (GCD) of 84 and 126.
Correct answer(s):
- 42
Express the fraction 7/8 as a decimal.
Correct answer(s):
- 0.875
Select all prime numbers from the following list: 29, 35, 51, 53.
Correct answer(s):
- 29
- 53
Find the sum of the first 20 natural numbers.
Correct answer(s):
- 210
Find the least common multiple (LCM) of 18 and 24.
Correct answer(s):
- 72
Express the improper fraction 47/6 as a mixed number in simplest form.
Correct answer(s):
- 7 5/6
Select all numbers divisible by 9 from the list: 3,645; 4,038; 5,421; 6,732.
Correct answer(s):
- 3,645
- 6,732
Find the sum of the digits of the number 7,294.
Correct answer(s):
- 22
Express the repeating decimal 0.333… as a fraction in simplest form.
Correct answer(s):
- 1/3
Select all prime numbers from the list: 29, 51, 57, 61.
Correct answer(s):
- 29
- 61
Find the highest common factor (HCF) of 42, 56, and 98.
Correct answer(s):
- 14
Calculate the least common multiple (LCM) of the numbers 8, 12, and 20.
Correct answer(s):
- 120
Round the number 8,756 to the nearest hundred.
Correct answer(s):
- 8,800