| Rani invited 93 friends to her birthday party. Only 20 friends came to the party. How many friends didn't came to Rani's party. 
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        | I filled a tank with 25 gallons of water. 22 gallons leaked from the tank. How many gallons of water is left in the tank? 
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        | 42 birds are sitting on a tree. 40 of them flew away. How many birds will be left on the tree? 
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        | Rani watered 14 of the 58 plants. How many plants still need to be watered? 
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        | John has 34 dollars more than Karen. Karen has 41 dollars. How many dollars does John have? 
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