Year 7 Multiplicative thinking

Integer Challenge

100

−8+15−4

3

200

(-6) x 4 + 10

-14

300

24 ÷ (−3) × 2

-16

400

5 - (3 x (-4))

17

500

(-2)³ + 18 ÷ (-3) - 5

-19

Fractions and Decimals

100

0.6×0.4

0.24

200

Three quarters multiplied by eight fifths

6/5

or

1 and 1/5

300

3/4 of a length of rope is 0.5 metres long. How long is 2 lengths of that same rope?

4/3 metres

400

3.6÷0.12

30

500

A recipe uses

3/4 of a cup of milk.

You make

2 and a half batches.

How many cups of milk are needed?

15/8

or 

1 and 7/8

Percentagess

100

10% of 50

5

200

25% of 80

20

300

A shirt costs $40. It increases by 10%. New price?

$44

400

A bike costs $120. It decreases by 25%. New price?

$90

500

A game costs $80. It increases by 15%. What is the new price?  

$92

Algebra

100

Simplify:

3x+2x

5x

200

Simplify
8a - 3a

5a

300

Simplify:
4x + 3y + 2x

6x + 3y

400

Substitute x = 3:

2x + 5

11

500

3a + 4b - a + 2b

2a + 6b

Indices and Roots

100

2³

8

200

What is the cube root of 125?

5

300

Write 64 in the form 4^x where x is an integer

4³

400

2³ + 3²

17

500

1¹ + 2² + 3³

32