Question
There were some children in the canteen. After 19 boys left the canteen and 22 girls entered the canteen, there were 153 children in the canteen. How many children were there in the canteen at first?
2 m

Click button first when a symbol is required. X

There were some children in the canteen. After 19 boys left the canteen and 22 girls entered the canteen, there were 153 children in the canteen. How many children were there in the canteen at first?