# Sarin, Hairu and Fatimah make greeting cards for Mother’s Day part 2 (Math Question)

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You can read the story of Sarin and the siblings making greeting cards for their mother by reading posting on Sarin, Hairu and Fatimah make greeting cards for Mother’s Day in Welcome page.

Read posting Sarin learns Lines and Angles (Math concept) to understand the concept of lines and angles. Read also posting Sarin learns Shapes and Solids in school (Math Concept) to know about shapes.

Upper primary school mathematics question UPQ133

Hairu uses 4 square papers to create his greeting card. He formed the card as the figure below. It is by stacking 4 pieces of square paper one on top of another. The papers have different prints and sizes (of sides 3 cm, 4 cm, 5 cm and 6 cm). The 6-cm piece is placed at the bottom of the stack, followed by the 5-cm piece, then the 4-cm piece and the 3-cm piece is placed right on top. Find the sum of the area A and B.

Solution:

Working out the length of the square A & B

Both square are 2 cm by 2cm

The sum of area A and B = 2 × 2 × 2 = 8cm2

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