Zoe spent less than $120. She already bought a toy helicopter at $26.40. 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 Zoe left to spend on the 2 items
= 120 - 26.40
= $93.60
Round off each number to the nearest tens for a more accurate estimation.
(a) Aeroplane: $51.10 ≈ $50
(b) Blocks: $25.60 ≈ $30
(c) Teddy bear: $39.80 ≈ $40
(d) Lego: $62.80 ≈ $60
50 + 40 = 90
90 is nearest to 93.60.
Total amount spent on the two items
= 51.10 + 39.80
= $90.90
To use up all her money to buy another 2 items, she cannot exceed $93.60.
The total amount of $90.90 is nearest to and less than $93.60.
So, Zoe bought (a) Aeroplane and (c) Teddy Bear.
Answer(s): (a) a, c; (b) $90.90