Subtraction sentences for word problems – numbers up to 10
Understanding Subtraction
- Subtraction is taking away or finding the difference between two numbers.
- Symbols: Use the minus sign (-) and the equal sign (=).
Subtraction Sentences
- A subtraction sentence is a mathematical expression, e.g., 8 − 3 = 5.
- The first number is the minuend (the total or starting number).
- The second number is the subtrahend (the number being taken away).
- The result is the difference.
Numbers Up to 10
- Focus on subtraction within the range of 0 – 10.
- Examples: 10 − 5 = 5, 6 − 2 = 4, 7 − 7 = 0 .
Using Word Problems
- Word problems describe real-life scenarios.
- Example: “Lily had 7 apples. She gave 3 to her friend. How many does she have left?”
- Write the subtraction sentence: 7−3 = 4 .
Steps to Solve Word Problems
- Step 1: Read the problem carefully.
- Step 2: Identify the total, the part taken away, and what is left.
- Step 3: Write the subtraction sentence.
- Step 4: Solve the subtraction sentence.
Learn with an example
🔷Harper has finished reading 4 pages in her library book. The book has a total of 5 pages. How many pages does Harper have left to read?
Write a subtraction number sentence that fits the story.
Write a subtraction number sentence. Subtract the number of pages Harper already read from the total number of pages. First write:
- 5 − 4
Now complete the subtraction number sentence by finding the difference of 5 and 4:
- 5 − 4 = 1
🔷Mandy has finished reading 2 pages in her library book. The book has a total of 4 pages. How many pages does Mandy have left to read?
Write a subtraction number sentence that fits the story.
Write a subtraction number sentence. Subtract the number of pages Mandy already read from the total number of pages. First write:
- 4 − 2
Now complete the subtraction number sentence by finding the difference of 4 and 2:
- 4 − 2 = 2
🔷Wendy works at a women’s clothing store. Yesterday, a total of 5 customers shopped at the store and 2 bought skirts. How many customers did not buy skirts?
Write a subtraction number sentence that fits the story.
Write a subtraction number sentence. Subtract the number of customers who bought skirts from the total number of customers. First write:
- 5 − 2
Now complete the subtraction number sentence by finding the difference of 5 and 2:
- 5 − 2 = 3
Let’s practice!