Chapter 6


How can add and subtract 2-digit numbers?

Add: To join together sets to find the total or sum.

 
Hundreds: The numbers in the range of 100-999. It is the place value of a number.

Ones: The numbers in the range of 0-9. It is the place value of a number.

Regroup: To take a part a number to write it in a new way.

Tens: The numbers in the range of 10-99.  It is a place value of a number.

Subtract: To take away, take apart, separate, or find the difference between two sets. The opposite of addition.