What Does It Mean to Complete a Subtraction Sentence?
Subtraction sentences tell us how much is left when we take away one number from another.
Sometimes we need to find the missing number in a subtraction problem. It's like solving a puzzle! We might need to find the first number (minuend), the number being subtracted (subtrahend), or the answer (difference).
How to Find the Missing Number
1️⃣ Look at what's missing - Is it the first number, the number being subtracted, or the answer?
2️⃣ Think about the relationship - Remember that subtraction is the opposite of addition!
3️⃣ Check your answer - Does it make sense when you put it back in the problem?
Let's Practice Together!
Example 1: Find the Missing Number
12 - ? = 5
What number makes this subtraction sentence true?
Example 2: Find the Difference
15 - 7 = ?
What's the answer to this subtraction problem?
Parent Tips 🌟
- Use real objects like toys or snacks to demonstrate subtraction - "If you have 10 grapes and eat 3, how many are left?"
- Play subtraction games - Try "Subtraction War" with playing cards (each player flips two cards and subtracts the smaller from the larger).
- Connect to daily life - Point out subtraction situations like "We had 18 cookies, and we ate 5. How many are left?"