Adding Using a Hundred Square — Let's Practise
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Basics on the topic Adding Using a Hundred Square — Let's Practise
We're diving into the world of adding using a hundred square. This method is a great way to visualise addition and make counting easier. Get your paper and pencils ready because today, we're going to practise this together!
What Is a Hundred Square?
A hundred square is organised with numbers one to one hundred in columns and rows. When you read a hundred square, you read it like a book, from left to right, starting from the top. This visual tool helps us see how numbers increase and assists with adding numbers.
Here are the steps to tackle addition using a hundred square:
| Step # | Action |
|---|---|
| 1 | Find the larger addend, or number, on the chart. |
| 2 | Count up the second addend or number. |
| 3 | The number you land on is the sum, or answer. |
| 4 | Check your answer to ensure it makes sense with the problem. |
Let's practise understanding this method with a few examples.
Solving Addition Problems Using a Hundred Square – Example
Example 1:
How can you solve 18 + 5 using a hundred square?
Steps to Solve the Problem:
| Step # | Action |
|---|---|
| 1 | Find the larger addend on the chart: 18. |
| 2 | Count up the second addend: 1, 2, 3, 4, 5. |
| 3 | The number you land on is 23. |
The sum is 23.
Example 2:
How can you solve 24 + 6 using a hundred square?
Steps to Solve the Problem:
| Step # | Action |
|---|---|
| 1 | Find the larger addend on the chart: 24. |
| 2 | Count up the second addend: 1, 2, 3, 4, 5, 6. |
| 3 | The number you land on is 30. |
The sum is 30.
Example 3:
How can you solve 33 + 4 using a hundred square?
Steps to Solve the Problem:
| Step # | Action |
|---|---|
| 1 | Find the larger addend on the chart: 33. |
| 2 | Count up the second addend: 1, 2, 3, 4. |
| 3 | The number you land on is 37. |
The sum is 37.
Example 4:
How can you solve 45 + 7 using a hundred square?
Steps to Solve the Problem:
| Step # | Action |
|---|---|
| 1 | Find the larger addend on the chart: 45. |
| 2 | Count up the second addend: 1, 2, 3, 4, 5, 6, 7. |
| 3 | The number you land on is 52. |
The sum is 52.
Solving Addition Problems Using a Hundred Square – Application
Now, let's put your skills to the test. Solve these problems on your own, and check the solutions when you're ready!
Solving Addition Problems Using a Hundred Square – Summary
Key Learnings from this Text:
- Solving problems using a hundred square can be achieved by following these steps:
| Step # | Action |
|---|---|
| 1 | Find the larger addend, or number, on the chart. |
| 2 | Count up the second addend or number. |
| 3 | The number you land on is the sum, or answer. |
| 4 | Check your answer to ensure it makes sense with the problem. |
- Mastering the use of a hundred square is an important foundational maths skill.
Keep practising these steps, and you'll become a pro at using a hundreds chart to add numbers! Check out more fun maths challenges and exercises on our website to continue sharpening your skills.
Solving Addition Problems Using a Hundred Square – Frequently Asked Questions
Transcript Adding Using a Hundred Square — Let's Practise
Razzi says get these items ready because today we're going to practise adding using a hundred square. It's time to begin! Remember that a hundred square is organised with numbers one to one hundred in columns and rows. How can you solve eighteen plus five using a hundred square? Start by finding the larger addend, or number. Then, count on the second addend, or number, to find the answer. Did you also get twenty-three? Let's tackle the next problem! Let's solve twenty-four plus six using a hundred square. Start by finding the larger addend, or number, twenty-four. Then, count on the second addend, six, to find the answer. Did you also get thirty? Let's practise another problem! How can you solve thirty-three plus four using a hundred square? Start by finding the larger addend, or number. Then, count on the second addend, or number, to find the answer. Did you also get thirty-seven? Let's tackle the final problem! How can you solve forty-five plus seven using a hundred square? Start by finding the larger addend, or number, forty-five. Then, count on the second addend, or number, to find the answer. Did you also get fifty-two? Razzi had so much fun practising with you today! See you next time!
Adding Using a Hundred Square — Let's Practise exercise
-
What is 12 + 4?
HintsStart by identifying the larger addend or number, 12, on the hundred square.
Count on 4 spaces as we are adding 4 to 12.
Solution- Start by identifying the larger addend or number, 12, on the hundred square.
- Count on by the second addend or number, 4, to find the solution.
-
Can you help Razzi work out how many blocks there are?
HintsWhich is the larger addend or number in the addition problem? Locate this on the hundred square.
Which is the smaller addend in the addition problem? Count up by this many from the larger addend.
Remember, when you get to the end of one row, continue counting from the beginning of the next row.
Solution- Start by identifying the larger addend or number, 18, on the hundred square.
- Count up by the second addend or number, 7, to find the solution.
-
Can you use the hundred square to solve the problems?
HintsStart by identifying the larger addend or number in the problem, then find it on the hundred square.
Count up by the second addend or number to find the solution.
For example, if we were adding 48 + 3, we would find 48 on the hundred square and then count up 3 more.
Solution22 + 5 = 27
- Start by finding the larger addend or number, 22, on the hundred square.
- Count up by the second addend or number, 5, to find the solution.
- Start by finding the larger addend or number, 37, on the hundred square.
- Count up by the second addend or number, 3, to find the solution.
- Start by finding the larger addend or number, 56, on the hundred square.
- Count up by the second addend or number, 6, to find the solution.
-
Hundred square addition.
HintsWhich is the larger number in the problem? Find it on the hundred square.
How much should you count up by?
For example, if we were adding 88 + 6, we would find 88 on the hundred square and count up 6 more.
Solution67 + 8 = 75
- Start by finding the larger addend or number, 67, on the hundred square.
- Count up by the second addend or number, 8, to find the solution.
- Start by finding the larger addend or number, 45, on the hundred square.
- Count up by the second addend or number, 5, to find the solution.
- Start by finding the larger addend or number, 72, on the hundred square.
- Count up by the second addend or number, 9, to find the solution.
-
What are the steps for adding using a hundred square?
HintsDo you identify the larger or smaller addend first?
Which addend do you count up by?
For example, if we were solving 22 + 3, we would find 22 (the larger addend) on the hundred square and then count up by 3 (the smaller addend).
SolutionSteps for adding using a number chart:
- Start by identifying the larger addend in the problem and finding it on the hundred square.
- Count up from the larger addend by the smaller addend.
- Finally, find the solution.
-
Razzi has a two-part problem to solve.
HintsStart at the larger number and count up by the second number.
Count up by the third number to find the solution.
Solution27 + 5 + 7 = 39
- Start by finding the larger addend or number, 27, on the hundred square.
- Count up by the second addend or number, 5, to get 32.
- Count up by the third addend or number, 7, to find the solution.
