Zara spent less than $110. She already bought a toy helicopter at $32.20. 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 Zara left to spend on the 2 items
= 110 - 32.20
= $77.80
Round off each number to the nearest tens for a more accurate estimation.
(a) Cube: $16.90 ≈ $20
(b) Guitar: $45.30 ≈ $50
(c) Cushion: $28.20 ≈ $30
(d) Ball: $39.20 ≈ $40
50 + 30 = 80
80 is nearest to 77.80.
Total amount spent on the two items
= 45.30 + 28.20
= $73.50
To use up all her money to buy another 2 items, she cannot exceed $77.80.
The total amount of $73.50 is nearest to and less than $77.80.
So, Zara bought (b) Guitar and (c) Cushion.
Answer(s): (a) b, c; (b) $73.50