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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
Determine the highest common factor (HCF) of 84 and 126.
Correct answer(s):
- 42
Find the least common multiple (LCM) of 18 and 24.
Correct answer(s):
- 72
Find the value of the digit 7 in the number 3,476,025.
Correct answer(s):
- 70,000
Find the smallest positive integer that is divisible by both 8 and 12 and leaves a remainder of 4 when divided by 5.
Correct answer(s):
- 24
Which statement is correct: 0.6 is greater than 3/5, 3/5 is greater than 0.6, or they are equal
Correct answer(s):
- They Are Equal
Determine all digits x (0–9) for which the three-digit number 3×5 is divisible by 3.
Correct answer(s):
- 1
- 4
- 7
Evaluate the expression: (-3) × 4 + 18 ÷ 3.
Correct answer(s):
- -6
Calculate the sum of the first 20 natural numbers.
Correct answer(s):
- 210
Express the fraction 7/8 as a decimal.
Correct answer(s):
- 0.875
Select all numbers from the list that are divisible by 9.
Correct answer(s):
- 81
- 234
- 306
- 450