Lynn spent less than $120. She already bought a toy helicopter at $23.70. She tried to use up all her money and bought another two items.
- Name the two items. Give your answers in letters. (Eg a, b)
- What was the total cost for the two items?
(a)
Estimated amount that Madam Lynn left to spend on the 2 items
= 120 - 23.70
= $96.30
Round off each number to the nearest tens for a more accurate estimation.
(a) Aeroplane: $51.80 ≈ $50
(b) Blocks: $31.90 ≈ $30
(c) Teddy bear: $42.10 ≈ $40
(d) Lego: $59.90 ≈ $60
30 + 60 = 90
90 is nearest to 96.30.
Total amount spent on the two items
= 31.90 + 59.90
= $91.80
To use up all her money to buy another 2 items, she cannot exceed $96.30.
The total amount of $91.80 is nearest to and less than $96.30.
So, Lynn bought (b) Blocks and (d) Lego.
Answer(s): (a) b, d; (b) $91.80