Square numbers & cube numbers

Recognise and calculate square numbers (n²) and cube numbers (n³)

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Try each question. If you're stuck, leave it and come back. The answer key is on the last page.

1
What is 4²? A) 8 B) 12 C) 16 D) 24
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2
What is 5²? 5² = ___
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3
Is this statement true or false? 2³ = 8. A) True B) False
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4
Which of these is a square number? A) 15 B) 20 C) 36 D) 50
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5
What is 9²? 9² = ___
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6
Match each number to its square. Match each item on the left to one on the right. Left: 6², 7², 8², 10² Right: 36, 49, 64, 100
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7
Order these square numbers from smallest to largest: 4², 3², 6², 5². Put these in order: 4², 3², 6², 5²
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8
What is 12²? 12² = ___
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9
What is 5³? A) 15 B) 25 C) 75 D) 125
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10
Is this statement true or false? 4³ = 64. A) True B) False
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Answer key

Square numbers & cube numbers · for parents and teachers

1
16
4² = 4 × 4 = 16.
2
25
5² = 5 × 5 = 25.
3
True
2³ = 2 × 2 × 2 = 8. The statement is true.
4
36
36 = 6 × 6 = 6², so 36 is a square number.
5
81
9² = 9 × 9 = 81.
6
6² → 36; 7² → 49; 8² → 64; 10² → 100
6 × 6 = 36, 7 × 7 = 49, 8 × 8 = 64, 10 × 10 = 100.
7
3², 4², 5², 6²
3² = 9, 4² = 16, 5² = 25, 6² = 36.
8
144
12² = 12 × 12 = 144.
9
125
5³ = 5 × 5 × 5 = 25 × 5 = 125.
10
True
4³ = 4 × 4 × 4 = 16 × 4 = 64. The statement is true.