Roshel spent less than $120. She already bought a toy helicopter at $29.30. 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 Roshel left to spend on the 2 items
= 120 - 29.30
= $90.70
Round off each number to the nearest tens for a more accurate estimation.
(a) Aeroplane: $47.70 ≈ $50
(b) Blocks: $33.30 ≈ $30
(c) Teddy bear: $40.80 ≈ $40
(d) Lego: $59.80 ≈ $60
50 + 40 = 90
90 is nearest to 90.70.
Total amount spent on the two items
= 47.70 + 40.80
= $88.50
To use up all her money to buy another 2 items, she cannot exceed $90.70.
The total amount of $88.50 is nearest to and less than $90.70.
So, Roshel bought (a) Aeroplane and (c) Teddy Bear.
Answer(s): (a) a, c; (b) $88.50