Expanded Addition
Expanded addition is a model used to demonstrate how we add numbers written in expanded form.
Remember... expanded form is when you write a number in a way that shows the place value of each digit.
Example: 432 = 400+30+2
Remember... expanded form is when you write a number in a way that shows the place value of each digit.
Example: 432 = 400+30+2
Solve 872 + 713 in expanded form (no regrouping)
Step 1
Write the problem in expanded form.
Step 2
Solve the problem in the ones place.
Step 3
Solve the problem in the tens place.
Step 4
Solve the problem in the hundreds place.
Step 5
Take your expanded form answer and write it in standard form.
Solve 197 + 438 in expanded form (with regrouping)
Step 1
Write the problem in expanded form.
Step 2
Solve the problem in the ones place.
Step 3
Expand the answer for the ones place and carry the ten.
Step 4
Solve the problem in the tens place.
**Do not forget to add the ten that you carried from the ones.**
**Do not forget to add the ten that you carried from the ones.**
Step 5
Expand the answer for the tens place and carry the hundred.
Step 6
Solve the problem in the hundreds place.
**Do not forget to add the hundred that you carried.
**Do not forget to add the hundred that you carried.
Step 7
Take your expanded form answer and write it in standard form.