Get PRINT-OUT version.

Get ANSWERS.

PROBLEM SOLVING 030


Subtraction

[one] George earned $20.00 by delivering newspapers. He spent $5.00 in total on 2 new comics. He also gave $3.00 to his sister so she could go to a magic show. Next, George decided to put $10.00 in the bank. How much money did George have left in his pocket?

Hint

[two] Sally was travelling from her school to her house. The distance between her school and her house is 5km. She had already walked 3km, so how much further did she have to walk?

Hint

[three] Ann enjoyed playing marbles because she was a very skilful player. Unfortunately, she had three bad games one day. In the first game, she lost 3 marbles. In the second game, she lost 5 marbles, and then she lost 2 more marbles in the last game. If she started with 33 marbles, how many did she have left after those three games?

Hint

[four]Brian had a fortnight to complete an important assignment. After a couple of days, he hadn't started yet. After another week, he still hadn't started. How long did Brian have left to finish his assignment?

Hint

[five] Toby and Sue were looking forward to Christmas. If the date was December 12th, how many days were there until Christmas?

Hint










































First, you need to add up all the marbles Ann lost.

Another hint

Back to Questions









































You subtract the distance she has travelled from the total distance she has to travel.

Another Hint

Back to Questions









































25 - 12 = answer

Back to Questions









































Ann started with 33 marbles, so the equation to solve this problem is: 33 - 10 = answer

Back to Questions









































Couple = 2.

A week = 7 days.
A fortnight = 14 days.
Another hint

Back to Questions









































3 + 5 + 2 = the amount you must subtract from the total number of marbles she started with.

Another Hint

Back to Questions









































First you must add up the days Brian has lost. You then subtract this answer from the total number of days he started with.

Another Hint

Back to Questions









































A couple of days + a week = 2 + 7 = 9 days LOST.

Another Hint

Back to Questions









































14 (a fortnight) - 9 = answer

Back to Questions









































George used $18.00. You now subtract $18.00 from $20.00

Back to Questions









































Christmas is on the 25th of December.

Another hint

Back to Questions









































First, you need to add up what George has used (spent and saved).

Another Hint

Back to Questions









































5km - 3km = answer.

Back to Questions









































$5.00 + $3.00 + $10.00 = the amount you must subtract from $20.00

Another hint

Back to Questions