Year 7 and 8 Number Quiz

Watch out for King Cobras! What's 4 x 4 ?

• 61

• 16

• 8

• 80

49 is a special type of number. It is the product of 7 multiplied by 7. We say 49 is a (a)   number. Your spelling must be correct.

Calculate the answer 4 x 4

• 61

• 16

• 8

• 80

What type of number only has two factors?

• a square number

• a dumb number

• a composite number

• a prime number

• 5 + 5

• 5 x 5

• 10

What is the square root of 81 ?

• 8

• 9

• 40.5

• 1 000 000

• 12

• 21

• 9

• 38

What's that smell? ...and what number is equivalent to 20 000 + 6 000 + 700 + 5 ?

• 9

• 2 675

• 26 705

• 26 750

Regina has tried to make a list of the first 7 triangular numbers. 1, 3, 6, 10, 14, 19, 25. She has made a mistake. Which numbers in Regina's list are not triangular numbers?

• 9

• 14, 251,

• 14, 25

• 14, 19, 25

• 9