Cindy spent less than $110. She already bought a toy helicopter at $32.50. 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
= 110 - 32.50
= $77.50
Round off each number to the nearest tens for a more accurate estimation.
(a) Cube: $21.50 ≈ $20
(b) Guitar: $50.90 ≈ $50
(c) Cushion: $30.70 ≈ $30
(d) Ball: $41.70 ≈ $40
30 + 40 = 70
70 is nearest to 77.50.
Total amount spent on the two items
= 30.70 + 41.70
= $72.40
To use up all her money to buy another 2 items, she cannot exceed $77.50.
The total amount of $72.40 is nearest to and less than $77.50.
So, Cindy bought (c) Cushion and (d) Ball.
Answer(s): (a) c, d; (b) $72.40