Question
PSLE
The airmail rates to two countries are shown. Tammy sent a letter weighing 57g to Indonesia and a letter weighing 11g to Sweden by airmail. How much did she pay altogether?

Mass Indonesia Sweden
First 20g $0.65 $1.80
Every additional 10g $0.25 $0.60
2 m

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PSLE
The airmail rates to two countries are shown. Tammy sent a letter weighing 57g to Indonesia and a letter weighing 11g to Sweden by airmail. How much did she pay altogether?

Mass Indonesia Sweden
First 20g $0.65 $1.80
Every additional 10g $0.25 $0.60