Foundation Mathematics Primary 3 Addition and Subtraction

At the school canteen, a curry puff costs $0.45 and a pandan cake costs $0.55. What is the total cost?

A $0.90
B $0.99
C $1.00
D $0.80
Show Worked Solution

Worked Solution

Step 1: Convert to cents: $0.45 = 45 cents, $0.55 = 55 cents Step 2: Add: 45 + 55 = 100 cents Step 3: Convert back: 100 cents = $1.00 Or recognise: 0.45 + 0.55 = 1.00 (number bonds to 1)

Correct answer: $1.00

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