Which of the following numbers are divisible by 9: 10, 243, 275, 999. Select all that apply.
Correct answer(s):
- 243
- 999
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Select all prime numbers from the list: 29, 49, 31, 57.
Correct answer(s):
- 29
- 31
Calculate the least common multiple (LCM) of 18 and 24.
Correct answer(s):
- 72
Find the value of the digit 5 in the number 120,534.
Correct answer(s):
- 500
Select all numbers that are rational from the list.
Correct answer(s):
- 0.75
- -3
- 0.333...
Select all prime factors of 360 from the list provided.
Correct answer(s):
- 2
- 3
- 5
Evaluate the expression (-5) × (-3) + (-4).
Correct answer(s):
- 11
Express the repeating decimal 0.666… as a fraction in simplest form.
Correct answer(s):
- 2/3
Find 15% of 240.
Correct answer(s):
- 36
Calculate the product of 0.125 and 0.8.
Correct answer(s):
- 0.1
Add the fractions 3/4 and 5/6 and give your answer as an improper fraction.
Correct answer(s):
- 19/12
Calculate the least common multiple (LCM) of 8, 12, and 20.
Correct answer(s):
- 120
Find the greatest common factor (GCF) of 84 and 126.
Correct answer(s):
- 42
Express 0.075 as a fraction in simplest form.
Correct answer(s):
- 3/40
What is the smallest number of zeros that must be appended to 16 to make the resulting number divisible by 25
Correct answer(s):
- 2
Calculate the sum of the first 50 natural numbers (1 through 50).
Correct answer(s):
- 1,275
Which of the following fractions is the greatest: 3/7, 5/9, 4/6, or 7/12
Correct answer(s):
- 4/6
Which digit(s) x (0–9) make the three-digit number 7×5 divisible by 3? Select all that apply.
Correct answer(s):
- 0
- 3
- 6
- 9
Select all prime numbers from the list: 29, 33, 47, 51.
Correct answer(s):
- 29
- 47
Express 0.363636… (0.¯36, where ’36’ repeats) as a fraction in simplest form.
Correct answer(s):
- 4/11