Sometimes both sides have working to do. That is still fine.
Step 1: Let's Learn
Read it, or press Listen and follow the words.
One side at a time
Work out the left side. Then the right side. Then compare them.
Work out both sides
When sums sit on both sides, find each side, then compare. 7 + 5 = 6 + 6 is true because both make twelve.
It is not about matching numbers
The two sides can look completely different and still be equal. Equal is about worth, not appearance.
Step 2: Try It Yourself
Tap and try it out.
12 take away 7 makes 5.
Step 3: Watch an Example
One step at a time.
Watch Leo Check Both Sides
Leo sees 12 − 7 = 3 + 2.
- Step 1
He works out the left side: 12 − 7 is 5.
Step 4: Your Turn
Practice makes it stick.
Checking Both Sides
Problem 1 of 1
Is this true? 10 + 5 = 9 + 6
True or False
Work out both sides, then decide.
1 of 2
Is 11 − 8 = 1 + 2 true?
2 of 2
Is 9 + 4 = 12 true?
Step 5: Quick Check
Show what you know.
Question 1 of 2
Is 13 − 9 = 2 + 2 true?
Question 2 of 2
Is 8 + 7 = 16 true?
What You Learned
- Both sides can have sums in them.
- Work out one side at a time.
- Then check whether they match.