Substraction within 40 Word Problems

Sam build 9 sand castles. The tide comes and washes off 5 of them. How many are left?

22 ducks were there in the pond. 8 of them went away. How many left?

Tina has 10 crayons. John has 3 less crayons than Tina. How many crayons does John have?

Ted has $45. He bought a toy car for $10 and a pencil box for $5. How much money is left with him now?

There were 15 eggs in the basket. Mom made breakfast using 6 of them. How many left?

There are 40 students in a class. 33 of them went for the school trip. How many left?

There were 25 guests at a birthday party. 18 of them left. How many guests are still there?

Tim had 16 flowers. He gave 3 of them to his siblings and 4 to friends. How many flowers left?

There were 17 people standing in a queue outside a bank. 12 of them went inside. How many are still in the queue?