Kylie spent less than $130. She already bought a toy helicopter at $23.10. 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 Kylie left to spend on the 2 items
= 130 - 23.10
= $106.90
Round off each number to the nearest tens for a more accurate estimation.
(a) Aeroplane: $47.90 ≈ $50
(b) Blocks: $33.10 ≈ $30
(c) Teddy bear: $39.80 ≈ $40
(d) Lego: $71.30 ≈ $70
30 + 70 = 90
90 is nearest to 106.90.
Total amount spent on the two items
= 33.10 + 71.30
= $104.40
To use up all her money to buy another 2 items, she cannot exceed $106.90.
The total amount of $104.40 is nearest to and less than $106.90.
So, Kylie bought (b) Blocks and (d) Lego.
Answer(s): (a) b, d; (b) $104.40