Question
PSLE
The airmail rates to two countries are shown. Min sent a letter weighing 89g to Laos and a letter weighing 37g to Switzerland by airmail. How much did she pay altogether?

Mass Laos Switzerland
First 40g $0.55 $1.90
Every additional 20g $0.15 $0.75
2 m

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PSLE
The airmail rates to two countries are shown. Min sent a letter weighing 89g to Laos and a letter weighing 37g to Switzerland by airmail. How much did she pay altogether?

Mass Laos Switzerland
First 40g $0.55 $1.90
Every additional 20g $0.15 $0.75