โ Topic Summary
Adding doubles simply means adding a number to itself! For example, $3 + 3$ is adding doubles. This is a key skill in first grade because it helps build a foundation for more complex math operations. Once you understand adding doubles, you can quickly solve problems and even begin to learn about multiplication!
๐ Part A: Vocabulary
Match the term with the correct definition.
| Term |
Definition |
| 1. Sum |
A. The number that is added to another. |
| 2. Addend |
B. To find the total. |
| 3. Add |
C. The result of adding two or more numbers. |
| 4. Doubles |
D. The same number added to itself. |
| 5. Equation |
E. A mathematical statement that two expressions are equal. |
Match the following:
- ๐ 1 - C
- ๐ก 2 - A
- ๐ 3 - B
- โ 4 - D
- ๐งฎ 5 - E
โ๏ธ Part B: Fill in the Blanks
Complete the sentences with the correct words.
When we do adding __________, we are adding a number to __________. The answer we get is called the __________. For example, $4 + 4 = 8$ is an __________ doubles equation. Adding doubles helps us solve problems __________.
- ๐ข Adding
- โ Itself
- โ Sum
- ๐งฎ Easy
๐ค Part C: Critical Thinking
Explain in your own words why learning to add doubles is important for first graders.
