Anna spent less than $120. She already bought a toy helicopter at $32.70. 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 Anna left to spend on the 2 items
= 120 - 32.70
= $87.30
Round off each number to the nearest tens for a more accurate estimation.
(a) Cube: $23.30 ≈ $20
(b) Guitar: $51.80 ≈ $50
(c) Cushion: $33.10 ≈ $30
(d) Ball: $37.20 ≈ $40
50 + 30 = 80
80 is nearest to 87.30.
Total amount spent on the two items
= 51.80 + 33.10
= $84.90
To use up all her money to buy another 2 items, she cannot exceed $87.30.
The total amount of $84.90 is nearest to and less than $87.30.
So, Anna bought (b) Guitar and (c) Cushion.
Answer(s): (a) b, c; (b) $84.90