Lesson

Can you partition numbers up to the thousands (4 digits)?

We have written a number in the number expander.

What is the value of the tens?

What is the value of the hundreds?

Let's see how to break up a 5 digit number, and then put it back together. We'll start with a 4 digit number to warm up.

Fill in the number expander for $60908$60908.

$60908$60908 $=$= $\editable{}$ ten thousands $\editable{}$ thousands $\editable{}$ hundreds $0$0 tens $8$8 units Write $60908$60908 as a number sentence.

$\editable{}+\editable{}+\editable{}$++

Write the following as a single number: $10000+7000+90$10000+7000+90.

Remember!

Except for the far left digit of our number, every place must have a number in it. If we don't have any of a place, we must put a zero in that place. The number twenty eight thousand and forty nine has no hundreds, so we would write it like this $28049$28049.

applies place value to order, read and represent numbers of up to five digits

uses mental and written strategies for addition and subtraction involving two-, three-, four and five-digit numbers