Questions & Answers
Browse all 18 questions from the
Pre-Algebra Mastery Challenge study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
What is the prime factorization of 72?
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A
2³ × 3²
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B
2² × 3³
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C
2⁴ × 3
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D
2 × 3⁴
2
If x + 7 = 15, what is the value of x?
3
What is the greatest common divisor (GCD) of 48 and 64?
4
What is the area of a rectangle with a length of 9 cm and a width of 5 cm?
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A
45 cm²
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B
14 cm²
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C
28 cm²
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D
19 cm²
5
If a number is divisible by both 3 and 5, it is also divisible by:
6
What is the value of 5² + 3³?
7
Solve for y: 3y - 4 = 11
8
What is the least common multiple (LCM) of 6 and 8?
9
What is the perimeter of a square with a side length of 7 meters?
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A
28 meters
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B
49 meters
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C
14 meters
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D
21 meters
10
If a recipe calls for 2 cups of flour for every 3 eggs, how many eggs are needed for 6 cups of flour?
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A
9 eggs
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B
4 eggs
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C
12 eggs
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D
3 eggs
11
What is the value of the expression 10 ÷ 2 + (5 × 3)?
12
What is the absolute value of -12?
13
If the ratio of boys to girls in a class is 3:4, and there are 12 boys, how many girls are there?
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A
16 girls
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B
9 girls
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C
7 girls
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D
48 girls
14
What is the volume of a cube with a side length of 3 inches?
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A
27 cubic inches
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B
9 cubic inches
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C
18 cubic inches
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D
36 cubic inches
15
What is the next number in the sequence: 5, 10, 20, 40, ...?
16
If 25% of a number is 10, what is the number?
17
What is the value of 4(x + 2) when x = 3?
18
What is the average of the numbers 10, 15, and 20?
