Question
PSLE
The airmail rates to two countries are shown. Xuan sent a letter weighing 69g to Thailand and a letter weighing 19g to New Zealand by airmail. How much did she pay altogether?

Mass Thailand New Zealand
First 20g $0.85 $1.70
Every additional 10g $0.65 $0.65
2 m

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PSLE
The airmail rates to two countries are shown. Xuan sent a letter weighing 69g to Thailand and a letter weighing 19g to New Zealand by airmail. How much did she pay altogether?

Mass Thailand New Zealand
First 20g $0.85 $1.70
Every additional 10g $0.65 $0.65