Question
PSLE
The airmail rates to two countries are shown. Usha sent a letter weighing 51g to Vietnam and a letter weighing 13g to Egypt by airmail. How much did she pay altogether?

Mass Vietnam Egypt
First 20g $0.65 $1.30
Every additional 10g $0.25 $0.35
2 m

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PSLE
The airmail rates to two countries are shown. Usha sent a letter weighing 51g to Vietnam and a letter weighing 13g to Egypt by airmail. How much did she pay altogether?

Mass Vietnam Egypt
First 20g $0.65 $1.30
Every additional 10g $0.25 $0.35