Hilda spent less than $80. She already bought a toy helicopter at $24.60. 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 Hilda left to spend on the 2 items
= 80 - 24.60
= $55.40
Round off each number to the nearest tens for a more accurate estimation.
(a) Blocks: $33.20 ≈ $30
(b) Cube: $17.10 ≈ $20
(c) Aeroplane: $46.80 ≈ $50
(d) Doll: $37.70 ≈ $40
30 + 20 = 50
50 is nearest to 55.40.
Total amount spent on the two items
= 33.20 + 17.10
= $50.30
To use up all her money to buy another 2 items, she cannot exceed $55.40.
The total amount of $50.30 is nearest to and less than $55.40.
So, Hilda bought (a) Cube and (b) Block.
Answer(s): (a) a, b; (b) $50.30