Year 7 Term 1

The prime factors of 12 in index form is written as:

• 4x3

• 2²x3

• 3²x2

• 3x2x2

1208 in index form is:

• 1x10³+2x10²+8x10¹

• 12x10⁸

• 1000+200+80

• 1x10³+2x10²+8x10⁰

Write the following number 8x10⁶+5x10³

• 8005000

• 805000

• 8000500

• 800500

Write 2x2x3x3 in power form

• 4 x 9

• 36

• 2 x 3²

• 2²x3²

Evaluate 4³

• 12

• 4x4x4

• 64

• 16

Write 60000 in power form

• 60x10³

• 60x10⁴

• 6x10³

• 6x10⁴

Write the prime factors for 260 in index form

• 13x5x2

• 13x5x2²

• 13x5x2x2

• 26x10¹

129.998 rounded to 2 decimal places would be:

• 130.00

• 129.99

• 129.98

• 130.01

The square root of 169 =

• 13
• 14
• 16
• 17

Which number is NOT a prime: 3, 7, 19, 31, 51, 89

• 51

• 89

• 31

• 19