Question
PSLE
The airmail rates to two countries are shown. Sarah sent a letter weighing 87g to Indonesia and a letter weighing 30g to China by airmail. How much did she pay altogether?

Mass Indonesia China
First 40g $0.75 $1.60
Every additional 20g $0.45 $0.70
2 m

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PSLE
The airmail rates to two countries are shown. Sarah sent a letter weighing 87g to Indonesia and a letter weighing 30g to China by airmail. How much did she pay altogether?

Mass Indonesia China
First 40g $0.75 $1.60
Every additional 20g $0.45 $0.70