Cindy spent less than $100. She already bought a toy helicopter at $33.50. 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 Cindy left to spend on the 2 items
= 100 - 33.50
= $66.50
Round off each number to the nearest tens for a more accurate estimation.
(a) Cube: $22.80 ≈ $20
(b) Guitar: $48.30 ≈ $50
(c) Cushion: $25.90 ≈ $30
(d) Ball: $40.30 ≈ $40
30 + 40 = 70
70 is nearest to 66.50.
Total amount spent on the two items
= 25.90 + 40.30
= $66.20
To use up all her money to buy another 2 items, she cannot exceed $66.50.
The total amount of $66.20 is nearest to and less than $66.50.
So, Cindy bought (c) Cushion and (d) Ball.
Answer(s): (a) c, d; (b) $66.20