Add one ,two and three Digit Numbers.

Standard: 3.NBT.A.2

Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

Learning Outcomes

Learning Outcomes:

Students will understand how to add a 1-digit number and a 2-digit number together (e.g., 7 + 25 = 32) and recognize when regrouping is needed.
Students will fluently add a 2-digit number to a 3-digit number (e.g., 45 + 378 = 423) by aligning digits correctly and carrying over when necessary.
Students will add two 2-digit numbers (e.g., 56 + 73 = 129) and accurately handle the carrying-over process for both the ones and tens places.
Students will add a 1-digit number to a 3-digit number (e.g., 5 + 632 = 637) and see how even small numbers can be added to larger numbers without needing to regroup.
Students will successfully add two 3-digit numbers (e.g., 487 + 312 = 799), practicing regrouping in both the ones and tens places.
Student will be able Confidently apply addition to real-life scenarios and math problems involving sums of varying lengths.

Download Add one ,two and three Digit Numbers.

Click the button below to get instant access to these premium worksheets for use in the classroom or at a home.

Definition Adding Numbers :

1-Digit Addition:

This is the simplest form of addition, where both numbers being added have only one digit. The sum typically results in a number between 0 and 18 (if both numbers are at most 9).
Example: 7 + 5 = 12.

2-Digit Addition:

In 2-digit addition, both numbers consist of two digits (a number in the tens place and a number in the ones place). When adding 2-digit numbers, the addition process may involve regrouping (carrying over) if the sum in the ones or tens place is greater than 9.
Example: 45 + 32 = 77.

3-Digit Addition:

3-digit addition involves adding numbers that have a hundred, tens, and ones place. Similar to 2-digit addition, this process may require regrouping if the sum in any place value exceeds 9.
Example: 378 + 456 = 834.

Example 1:

Adding a 1-digit Number and a 2-digit Number: 7 + 25

Step-by-Step Solution:

1. Align the numbers based on place value:

25
+ 7
------
2. Start with the one's place:

- 5 + 7 = 12. Write 2 in the one's place and carry over 1 to the tens place.
Add the tens place:
- 2 (from 25) + 1 (carry-over) = 3.
Final solution:

25
+ 7
------
32

So 7 + 25 = 32.

Example 2:

Adding a 2-digit Number and a 3-digit Number: 45 + 378

Step-by-Step Solution:

Align the numbers by place value:
378
+ 45
------
Start with the one place:
- 8 + 5 = 13. Write 3 in the one's place and carry over 1 to the tens place.
Move to the tens place:
- 7 + 4 = 11, and add the carry-over 1: 11 + 1 = 12. Write 2 in the tens place and carry over 1 to the hundreds place.
Add the hundreds place:
- 3 (from 378) + 1 (carry-over) = 4.
Final Solution:

378
+ 45
------
423

So 45 + 378 = 423.

Example 3:

Adding Two 2-digit Numbers: 56 + 73

Step-by-Step Solution:

Align the numbers by place value:

56
+ 73
------

2. Add the ones place:

1. 6 + 3 = 9.
Add the tens place:
1. 5 + 7 = 12. Write 2 in the tens place and carry over 1 to the hundreds.
Final solution:

56
+ 73
------
129

So, 56 + 73 = 129.

Example 4:

Adding a 1-digit Number and a 3-Digit number: 5 + 632

Step-by-Step Solution:

Align the numbers by place value:

632
+ 5
------

Start with the ones place:
- 2 + 5 = 7.
Since there are no digits in the tens or hundreds place of the second number, move directly to the next places:
- Tens place: 3 (from 632) remains as 3.
- Hundreds place: 6 (from 632) remains as 6.

632
+ 5
------
637

So, 5 + 632 = 637.

Let's practice solving Place values, and stay tuned with us for more content

More Similar Worksheets

Round Up to the Nearest Ten

3rd Grade

Place value with three digit

3rd Grade

Solve problems using multiplication.

3rd Grade

Addition using whole ten numbers.

3rd Grade

Learning Outcomes:

Download Add one ,two and three Digit Numbers.

Click the button below to get instant access to these premium worksheets for use in the classroom or at a home.

Definition Adding Numbers :

Example 1:

Adding a 1-digit Number and a 2-digit Number: 7 + 25

Example 2:

Adding a 2-digit Number and a 3-digit Number: 45 + 378

Example 3:

Adding Two 2-digit Numbers: 56 + 73

Example 4:

Adding a 1-digit Number and a 3-Digit number: 5 + 632

More Similar Worksheets

Weekly Newsletter

Subscribe

About Numeric Wiz

Useful links

Interactive Resources

Over 1,000 5-star reviews

Copyright 2024 © Numeric Wiz All Right Reserved

Designed, Developed & Maintained by Netycoon

Learning Outcomes:

Download Add one ,two and three Digit Numbers.

Click the button below to get instant access to these premium worksheets for use in the classroom or at a home.

Definition Adding Numbers :

Example 1:

Adding a 1-digit Number and a 2-digit Number: 7 + 25

Example 2:

Adding a 2-digit Number and a 3-digit Number: 45 + 378

Example 3:

Adding Two 2-digit Numbers: 56 + 73

Example 4:

Adding a 1-digit Number and a 3-Digit number: 5 + 632

Premium Membership

whats inside Premium package

More Similar Worksheets

Weekly Newsletter

Subscribe

About Numeric Wiz

Useful links

Interactive Resources

Over 1,000 5-star reviews

Copyright 2024 © Numeric Wiz All Right Reserved

Designed, Developed & Maintained by Netycoon

Menu