Jade spent less than $110. She already bought a toy helicopter at $25.40. 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 Jade left to spend on the 2 items
= 110 - 25.40
= $84.60
Round off each number to the nearest tens for a more accurate estimation.
(a) Aeroplane: $47.50 ≈ $50
(b) Blocks: $25.40 ≈ $30
(c) Teddy bear: $35.20 ≈ $40
(d) Lego: $72.40 ≈ $70
50 + 40 = 90
90 is nearest to 84.60.
Total amount spent on the two items
= 47.50 + 35.20
= $82.70
To use up all her money to buy another 2 items, she cannot exceed $84.60.
The total amount of $82.70 is nearest to and less than $84.60.
So, Jade bought (a) Aeroplane and (c) Teddy Bear.
Answer(s): (a) a, c; (b) $82.70