Question
PSLE
The airmail rates to two countries are shown. Kimberly sent a letter weighing 72g to Thailand and a letter weighing 36g to China by airmail. How much did she pay altogether?

Mass Thailand China
First 40g $0.65 $1.80
Every additional 20g $0.25 $0.70
2 m

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PSLE
The airmail rates to two countries are shown. Kimberly sent a letter weighing 72g to Thailand and a letter weighing 36g to China by airmail. How much did she pay altogether?

Mass Thailand China
First 40g $0.65 $1.80
Every additional 20g $0.25 $0.70