Number interpretation

Which of these numbers is Cubic ?

• 336

• 124

• 125

• 720

Which of these numbers is irrational ?

• ⅜

• π

• 0.080808

• 2.67 x 10¹⁴

Which of these numbers is not prime ?

• 1

• 2

• 5

• 7

Which of these number is not a natural number ?

• 2

• 3

• 5

• 0

Which of these calculations gives an answer of 2 ?

• 6 x 2 ÷ ( 3 + 5 )

• 6 x ( 9 ÷ 3 ) + 3

• 6 x 2 ÷ ( 3 + 3 )

• ( 6 x 2 ÷ 3 ) + 3

Which of these calculations gives an answer of 21 ?

• 20 - 6 ÷ 3 + 2

• 20 - 6 ÷ ( 3 + 3 )

• 20 - 9 ÷ 3 + 3

• 20 - 6 ÷ 3 + 3

What is the value of 64^⅔ ?

• 8

• 18

• 16

• 12

32ⁿ = 1

What is the value of n ?

• 1

• 0

• 2

• -1

5^n-2 = 5³

^{What is the value of n ?}

• 5

• -2

• 3

• 6

Calculate

(2²)³

• 32

• 128

• 16

• 64