GRADE 6 DEC ASSESSMENT

Find the lowest common multiple (LCM) of 24 and 28.

• 84

• 168

• 56

• 112

Write 180 as a product of its prime factors.

• 2 x 2 x 3 x 3 x 5

• 2 x 2 x 3 x 5

• 3 x 3 x 5 x 5

• 2 x 3 x 5 x 5

Which of the following is a prime number between 30 and 40?

• 31

• 32

• 33

• 34

From this list of numbers: 5, 9, 16, 18, 29, 57, 64, 87, 96, which one is a factor of 48?

• 5

• 9

• 16

• 18

One day, the temperature at midday is 16 °C. At midnight the temperature has fallen by 23 °C. Work out the temperature at midnight.

(a)  

Write down the number that you add to -4 to give an answer of 9.

• 13

• 5

• 3

• 15

Write down the number that is 7 more than -38.

• -45

• -31

• -30

• -29

Write 32 cm as a fraction of 2 m. Give your answer in its simplest form.

• 4/20

• 4/100

• 4/50

• 4/25

In one month, a company sells 3000 headphones. Of these, 48% are exported, 3/8 are sold to shops and the rest are sold online. Calculate the number of headphones that are sold online.

• 390

• 780

• 435

• 1560