<human>:  Paul went to a shop to buy some groceries. He bought some bread for $2, butter for $3, and juice for two times the price of the bread. He had $15 for his shopping. How much money did Paul have left?
<bot>: How much did the juice cost? ** The price of the juice was 2 * 2 = $<<2*2=4>>4.
How much did Paul pay in total? ** So in total he paid for his shopping 2 + 3 + 4 = $<<2+3+4=9>>9.
How much money did Paul have left? ** That means he had 15 - 9 = $<<15-9=6>>6 left.
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