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Middle Years

1.05 Square roots and perfect squares

Interactive practice questions

$7^2$72 is equal to which of the following?

$72$72

A

$7\times7$7×7

B

$2\times2\times2\times2\times2\times2\times2$2×2×2×2×2×2×2

C

$7\times2$7×2

D

$72$72

A

$7\times7$7×7

B

$2\times2\times2\times2\times2\times2\times2$2×2×2×2×2×2×2

C

$7\times2$7×2

D
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Which of the following numbers are perfect squares? Select all that apply.

Evaluate $4^2$42

Evaluate $9^2$92

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