Basic Addition: Solving 5 + 5 Units Step by Step

Basic Addition with Single-Digit Numbers

What number will we get if we add 5 units to the number 5?

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Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

What number will we get if we add 5 units to the number 5?

2

Step-by-step solution

To solve this problem, we will perform a simple arithmetic operation known as addition. The operation involves adding 5 units to the number 5.

We'll follow these steps:

  • Step 1: Identify the numbers we need to add together, which are 5 and 5.
  • Step 2: Use the addition operation to sum these numbers. The formula for addition is a+b=c a + b = c .
  • Step 3: Calculate 5+5 5 + 5 .

Here is the detailed calculation:

Step 1: We begin with the numbers 5 and 5, which can be thought of as having five units each.

Step 2: Applying the addition, we get 5+5 5 + 5 .

Step 3: Calculate the sum: 5+5=10 5 + 5 = 10 .

This calculation shows that when you add 5 units to the number 5, the result is 10.

Therefore, the solution to the problem is 10 10 .

3

Final Answer

10 10

Key Points to Remember

Essential concepts to master this topic
  • Rule: Addition combines two quantities into a single sum
  • Technique: Count forward from first number: 5 + 5 means start at 5, count 5 more
  • Check: Use subtraction to verify: 10 - 5 = 5 ✓

Common Mistakes

Avoid these frequent errors
  • Counting the starting number as part of the addition
    Don't count 5 as one of the units being added = getting 6, 7, 8, 9, 10, 11 instead of 10! This double-counts the starting number. Always start counting from the first number, then add the second amount.

Practice Quiz

Test your knowledge with interactive questions

If we have 67 blocks in total, how many blocks will remain if we remove 5 tens and 4 ones?

FAQ

Everything you need to know about this question

Why is 5 + 5 = 10 and not 11?

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When adding, you start at the first number (5), then count forward by the second number. So from 5, count 5 more: 6, 7, 8, 9, 10. You don't count the starting 5 again!

Is there a faster way than counting?

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Yes! You can use doubles facts. Since both numbers are the same (5 + 5), think of it as doubling 5. Double 5 equals 10!

How can I visualize this problem?

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Picture 5 objects in one group and 5 objects in another group. When you combine both groups, you get 10 objects total. You can also use your fingers!

What if I get a different answer?

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Check your counting! Make sure you start at 5 and count forward exactly 5 more numbers. Practice with smaller numbers like 2 + 2 = 4 first.

Why do we use the plus sign?

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The plus sign (+) tells us to combine or add together the numbers on both sides. It's like saying 'put these groups together' in math language.

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