Year 7 Number

Prime Numbers

100

Is the number 17 prime or composite?

Prime

200

The number of factors a prime number has.

2

300

Tell whether each of the following numbers is prime or composite: a. 19 b. 21 c. 23 d. 29

a. prime b. composite c. prime d. prime

400

Find the prime number: 12, 15, 18, 21, 24, 28, 31, 33, 35, 39

31

500

The first 10 primes.

2, 3, 5, 7, 11, 13, 17, 19, 23, 29

Prime Factorisation

100

Find the prime factorisation of 88. Say the answer in index notation.

2³ x 11

200

Find the prime factorisation of 100. Say the answer in index notation.

2² x 5²

300

The prime factorisation of 144. Say the answer in index notation.

2⁴ x 3²

400

The prime factorization of 200. Say the answer in index notation.

2³ x 5²

500

The prime factorisation of 350 using index notation is 2 x 5² x ?  The missing factor is.

7

Exponents

100

Simplify the following using exponents: 2 x 2 x 2

2³ or 2 cubed

200

Evaluate 3³.

27

300

The other name for 4 to the 2nd power.

4 squared

400

Another name for 5 to the 3rd power. 5³

five cubed

500

The exponent that makes this equation true.

4^? = 256

4

Order of Operations with indices

100

Solve 3² + 10 + 5²

44

200

Evaluate

54 ÷ 6 + 4²

 

25

300

Evaluate

7² + (8² ÷ 4³)

50

400

Evaluate

3⁴ - (36 - 7x 4)²

17

500

Evaluate

10 x (8 + 7² - 10) ÷ 2

235

Positive Integer Operations

100

Evaluate with working

18 + 44

62

200

Evaluate with working:

124 - 46

78

300

Evaluate with working:

84 x 3

252

400

Evaluate with working:

143 x 14

2002

500

Evaluate with working

195 ÷ 7

27 remainder 6