Taken from Bond Brain Training for Kids: Number Puzzles © Oxford University Press 2019

Number trainFollow the passengers carefully!• The train leaves the station with 37 passengers.• At the fi rst stop 29 people get off and 112 people get on.• At the second stop 53 people get off and 96 people get on.• At the third stop 47 people get off and 153 people get on.• The train reaches the fi nal destination.

How many people are on the train?

• When it returns the train has 182 passengers on it.• At the fi rst stop 18 people get off and 72 people get on.• At the second stop 105 people get off and 81 people get on.• At the third stop 96 people get off and 41 people get on.• The train reaches the fi nal destination.

How many people are on the train?

Taken from Bond Brain Training for Kids: Number Puzzles © Oxford University Press 2019

At the second stop 105 people get off and 81 people get on.At the third stop 96 people get off and 41 people get on.The train reaches the fi nal destination.

How many people are on the train?

Taken from Bond Brain Training for Kids: Number Puzzles © Oxford University Press 2019

Answers269 people are on the train. 37 – 29 + 112 – 53 + 96 – 47 + 153 = 269 157 people are on the train. 182 – 18 + 72 – 105 + 81 – 96 + 41 = 157