Nora spent less than $90. She already bought a toy helicopter at $23.90. 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 Nora left to spend on the 2 items
= 90 - 23.90
= $66.10
Round off each number to the nearest tens for a more accurate estimation.
(a) Cube: $17.30 ≈ $20
(b) Guitar: $47.50 ≈ $50
(c) Cushion: $26.10 ≈ $30
(d) Ball: $35.70 ≈ $40
30 + 40 = 70
70 is nearest to 66.10.
Total amount spent on the two items
= 26.10 + 35.70
= $61.80
To use up all her money to buy another 2 items, she cannot exceed $66.10.
The total amount of $61.80 is nearest to and less than $66.10.
So, Nora bought (c) Cushion and (d) Ball.
Answer(s): (a) c, d; (b) $61.80