Hands-On

Goal: Break apart numbers to find out which one is bigger.

Thanks for helping Alec and Sarah compare their apples!

What happens when two numbers have the same tens? We need to look at the ones! Use blocks to show 20 and 27 on place-value charts.

27 has 7 more groups of 1 than 20 has. That means it is the bigger number! 27 > 20.

Use your blocks to compare these numbers. Here is a place-value chart to help!

Which is bigger: 15 or 25?

Which is bigger: 31 or 27?

Which is bigger: 60 or 54?

Which is bigger: 49 or 45?

Which is bigger: 79 or 83?

Cards remaining:

Now use your chart and blocks for this worksheet! When you are done, turn in your assignment to your teacher with your Weekly Written Work.

Can we use blocks to break numbers apart?