Nicole spent less than $90. She already bought a toy helicopter at $20.10. 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 Nicole left to spend on the 2 items
= 90 - 20.10
= $69.90
Round off each number to the nearest tens for a more accurate estimation.
(a) Cube: $16.40 ≈ $20
(b) Guitar: $48.40 ≈ $50
(c) Cushion: $29.10 ≈ $30
(d) Ball: $36.30 ≈ $40
30 + 40 = 70
70 is nearest to 69.90.
Total amount spent on the two items
= 29.10 + 36.30
= $65.40
To use up all her money to buy another 2 items, she cannot exceed $69.90.
The total amount of $65.40 is nearest to and less than $69.90.
So, Nicole bought (c) Cushion and (d) Ball.
Answer(s): (a) c, d; (b) $65.40