Marion spent less than $90. She already bought a toy helicopter at $20.60. 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 Marion left to spend on the 2 items
= 90 - 20.60
= $69.40
Round off each number to the nearest tens for a more accurate estimation.
(a) Cube: $22.10 ≈ $20
(b) Guitar: $51.60 ≈ $50
(c) Cushion: $25.70 ≈ $30
(d) Ball: $41.40 ≈ $40
30 + 40 = 70
70 is nearest to 69.40.
Total amount spent on the two items
= 25.70 + 41.40
= $67.10
To use up all her money to buy another 2 items, she cannot exceed $69.40.
The total amount of $67.10 is nearest to and less than $69.40.
So, Marion bought (c) Cushion and (d) Ball.
Answer(s): (a) c, d; (b) $67.10