There is more than one way to make 6. There are seven ways in all.
Step 1: Let's Learn
Read it, or press Listen and follow the words.
Go in order
Start with 0 in the first tray. Then 1. Then 2. You will not miss any.
Work in order so you find them all
Start with 0 and 6, then 1 and 5, then 2 and 4. Going in order is how you know when you have finished, instead of hoping you have.
One side grows, the other shrinks
Every time the first part goes up by one, the second goes down by one. It has to, or the whole would change.
Step 2: Try It Yourself
Find every way. The gallery fills as you go.
- Empty
0 and 6 make 6.
Ways to make 6
0 of 7 found
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Step 3: Watch an Example
Watch how to find them in order.
Watch Ana Find Them in Order
Ana finds every way to make 6 without missing one.
- Step 1
She starts with 0 blocks in the first tray. That leaves 6.
Step 4: Your Turn
Practice makes it stick.
Two Pockets
Problem 1 of 1
Sam has 7 marbles in two pockets. One pocket has 5. How many are in the other?
Now Try 7
Change the whole to 7. How many ways will there be? Find them all.
- Empty
0 and 7 make 7.
Ways to make 7
0 of 8 found
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Step 5: Quick Check
Show what you know.
Question 1 of 2
4 and what make 6?
Question 2 of 2
3 and what make 7?
What You Learned
- A number can be split many ways.
- Going in order helps you find them all.
- 2 and 4 makes 6, and so does 4 and 2.