Are you ready?
When we count on a number line, counting by 10's or finding numbers that can make 10 will help us.
Exploration
Drag the slider to different numbers to see different pairs that add to 10.
Each number from 0 to 10 can be added to another number to get 10.
Examples
Example 1
Which of the following pairs of numbers add to 10?
Each number from 0 to 10 can be added to another number to get 10.
Count by 2, 5, 10
When we are counting, what happens when our number moves from the tens to the hundreds? In this video, we see how to continue counting by 1,2,5, or 10. We also look at how to count from hundreds to thousands, and thousands to tens of thousands.
Examples
Example 2
Using the image of the number line below, what is the next number in the pattern?
988,\, 993,\, 998,\, ⬚
When we count with numbers near 100, 1000, or 10\,000, a number line is really useful to see where we end up.
We can also break apart numbers in different ways, in order to help us count. Like in the image below, we could add 2 and then add 3, or we can add 5 in one jump.
