Question
PSLE
The airmail rates to two countries are shown. Yen sent a letter weighing 81g to Thailand and a letter weighing 29g to Canada by airmail. How much did she pay altogether?

Mass Thailand Canada
First 30g $0.85 $1.20
Every additional 15g $0.55 $0.40
2 m

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PSLE
The airmail rates to two countries are shown. Yen sent a letter weighing 81g to Thailand and a letter weighing 29g to Canada by airmail. How much did she pay altogether?

Mass Thailand Canada
First 30g $0.85 $1.20
Every additional 15g $0.55 $0.40