Recall

Which of the following is not a factor of 60

• 30

• 12

• 15

• 8

Which of the following is a multiple of 3

• 313

• 258

• 97

• 103

which of the following is not a prime number

• 27

• 29

• 31

• 37

What is the value of square root of 400

• 200

• 2

• 20

• 0.2

Estimate the answer to (23+57) / 18

• 4.4

• 3.5

• 4

• 3

Estimate the answer to (97 x 2.5) / 0.45

• 400

• 150

• 200

• 600

Work out 2 x 10³+ 3 x 10²

• 2.3 x 10³

• 23 x 10³

• 2.3 x 10⁵

• 2.3 x 10⁴

Work out (8 x 10⁶)/(2 x 10²)

• 4 x 10³

• 4 x 10⁴

• 6 x 10⁴

• 6 x 10³

2 x 10³ x 8 x 10⁵

• 1.6 x 10⁷

• 16 x 10⁷

• 1.6 x 10⁹

• 1.6 x 10⁸

Express in standard form 0.005

• 5 x 10³

• 5 x 10^-2

• 5 x 10 ^-3

• 5 x 10^-4