Emily spent less than $110. She already bought a toy helicopter at $28.60. 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 Emily left to spend on the 2 items
= 110 - 28.60
= $81.40
Round off each number to the nearest tens for a more accurate estimation.
(a) Cube: $20.30 ≈ $20
(b) Guitar: $49.50 ≈ $50
(c) Cushion: $26.70 ≈ $30
(d) Ball: $39.20 ≈ $40
50 + 30 = 80
80 is nearest to 81.40.
Total amount spent on the two items
= 49.50 + 26.70
= $76.20
To use up all her money to buy another 2 items, she cannot exceed $81.40.
The total amount of $76.20 is nearest to and less than $81.40.
So, Emily bought (b) Guitar and (c) Cushion.
Answer(s): (a) b, c; (b) $76.20