Find the greatest common divisor (GCD) of 84 and 126.
Correct answer(s):
- 42
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Calculate the least common multiple (LCM) of 18 and 24.
Correct answer(s):
- 72
Find the place value of the digit 5 in the number 3,456,789.
Correct answer(s):
- 50,000
Round the number 3.786 to two decimal places.
Correct answer(s):
- 3.79
What is the smallest positive integer that is divisible by both 6 and 15?
Correct answer(s):
- 30
Which of the following are rational numbers: 0.333…, √2, 5/7, π Select all that apply.
Correct answer(s):
- 0.333...
- 5/7
Arrange the numbers -3, 0, -7, and 5 in ascending order (from smallest to largest).
Correct answer(s):
- -7, -3, 0, 5
Find 15% of 240.
Correct answer(s):
- 36
Which of the following numbers are prime: 29, 39, 41, 51 Select all that apply.
Correct answer(s):
- 29
- 41
Express the fraction 7/8 as a decimal number.
Correct answer(s):
- 0.875
Find the highest common factor (HCF) of 48 and 72.
Correct answer(s):
- 24
Calculate the least common multiple (LCM) of 12 and 18.
Correct answer(s):
- 36
Find the place value of the digit 7 in the number 67,348.
Correct answer(s):
- 7,000
Which of the following numbers are divisible by 9: 729, 1234, 810, 455. Select all that apply.
Correct answer(s):
- 729
- 810
Decide whether the repeating decimal 0.333… is rational or irrational.
Correct answer(s):
- Rational
Round the number 347 to the nearest ten.
Correct answer(s):
- 350
Find the sum of all even integers from 2 to 100 inclusive.
Correct answer(s):
- 2550
How many positive divisors does the number 360 have?
Correct answer(s):
- 24
Convert the fraction 7/8 to its decimal form.
Correct answer(s):
- 0.875
From the list below, select all numbers that are prime: 29, 51, 57, 61.
Correct answer(s):
- 29
- 61