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 Page 1


Addition, 
Subtraction, 
and Money 
Page 2


Addition, 
Subtraction, 
and Money 
Understanding 
Addition
What is Addition?
Putting numbers together to find a total
Addition Example
245 + 367 = 612
Addition Method
Add ones, tens, and hundreds separately
Page 3


Addition, 
Subtraction, 
and Money 
Understanding 
Addition
What is Addition?
Putting numbers together to find a total
Addition Example
245 + 367 = 612
Addition Method
Add ones, tens, and hundreds separately
Let us Solve
Question:
Add 356 + 289
Page 4


Addition, 
Subtraction, 
and Money 
Understanding 
Addition
What is Addition?
Putting numbers together to find a total
Addition Example
245 + 367 = 612
Addition Method
Add ones, tens, and hundreds separately
Let us Solve
Question:
Add 356 + 289
Solution
1
Ones Digit
In Step 1, we add the ones digits: 6 + 9 = 15. We write down 5 in the ones 
place and carry the 1 to the tens column.
2
Tens Digit
For Step 2, we add the tens digits plus the carried 1: 5 + 8 + 1 = 14. We write 
down 4 in the tens place and carry the 1 to the hundreds column.
3
Hundreds Digit
Finally, in Step 3, we add the hundreds digits plus the carried 1: 
3 + 2 + 1 = 6. We write 6 in the hundreds place.
Putting it all together, our answer is 645.
Page 5


Addition, 
Subtraction, 
and Money 
Understanding 
Addition
What is Addition?
Putting numbers together to find a total
Addition Example
245 + 367 = 612
Addition Method
Add ones, tens, and hundreds separately
Let us Solve
Question:
Add 356 + 289
Solution
1
Ones Digit
In Step 1, we add the ones digits: 6 + 9 = 15. We write down 5 in the ones 
place and carry the 1 to the tens column.
2
Tens Digit
For Step 2, we add the tens digits plus the carried 1: 5 + 8 + 1 = 14. We write 
down 4 in the tens place and carry the 1 to the hundreds column.
3
Hundreds Digit
Finally, in Step 3, we add the hundreds digits plus the carried 1: 
3 + 2 + 1 = 6. We write 6 in the hundreds place.
Putting it all together, our answer is 645.
Q u e s t i o n
It's time to try another addition problem! This 
time, add 478 + 532.
Read More
65 docs|19 tests

FAQs on PPT: Addition, Subtraction and Money - Year 3 Mathematics IGCSE (Cambridge) - Class 3

1. What are the basic rules for addition and subtraction involving money?
Ans. The basic rules for addition and subtraction involving money include aligning the decimal points when adding or subtracting amounts, ensuring to carry over if sums exceed 9 in any column, and recognizing that when subtracting, if the number being subtracted is larger than the original amount, the result will be negative.
2. How do I calculate change when making a purchase?
Ans. To calculate change when making a purchase, subtract the total cost of the items from the amount of money given to the cashier. For example, if the purchase total is $15.75 and you give $20.00, the change will be $20.00 - $15.75 = $4.25.
3. Can you explain how to solve word problems involving money?
Ans. To solve word problems involving money, first read the problem carefully to identify key information. Then, determine what operations (addition or subtraction) are needed based on the context. Set up the equation using the amounts given, solve it step by step, and interpret the answer in terms of the problem.
4. What strategies can help with managing money effectively?
Ans. Effective money management strategies include creating a budget to track income and expenses, setting savings goals, using envelopes or apps to allocate spending limits, and regularly reviewing financial statements to ensure you are on track with your financial goals.
5. Why is it important to understand addition and subtraction when dealing with money?
Ans. Understanding addition and subtraction is crucial when dealing with money because it helps individuals make informed financial decisions, avoid mistakes in transactions, manage expenses, and maintain financial records accurately, which is essential for personal finance and budgeting.
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