EXTRACT A

Solve (a) 18x + 92 = 137 (b) 0.7x + 3.2 = 4.88

(c) 2.9x - 3.5 = 19.7 (d) 0.4x - 4.6 = -2.0

(SMP 11-16 Book Y1, p. 66)

EXTRACT B

A4 What is the bill for each of these shopping lists?

Work out each bill in your head.

 

(a) 1 kg potatoes (b) 2 oranges (c) 2kg spuds (d) 1kg bananas (e) 1 grapefruit

1 grapefruit 1 cauli 100g mushrooms 1 orange

1kg bananas

(SMP 11-16 Book G1, p. 14; original shopping lists drawn as fragments of paper)

EXTRACT C

A café orders p white loaves and q brown loaves every day

for r days.

What does each of these expressions tell you?

(a) p + q (b) pr (c) qr (d) (p + q)r

(SMP 11-16 Book Y1, p. 32)