Subtracting Whole Numbers.
Subtraction means take away (it is opposite of addition). The answer in a subtraction problem is called the difference. Subtrahend is the number to be subtracted from another number (the minuend) minuend – subtrahend = difference
To find the difference between two numbers, sometimes you need to regroup, or borrow, from another number. Example:
When the digit in the subtrahend is larger, decompose 1 unit of higher value into 10 units of the next lower value, and regroup.
WN12 Missing Addends
Addition and subtraction are opposite operations, so you can use one to check the other. If A + B = C, then C – B = A
Word Problems – Using Whole Numbers
WN08 Whole Numbers Subtraction
Write your own word problem: