Understanding Subtraction

1. MATHEMATICS
2

2. SUBTRACTION

3. What is
SUBTRACTION?

4. Subtraction may mean:
- taking away from a given set
- comparing two sets
- finding the missing addend
- it is the inverse or opposite of
addition

5. The symbol use for subtraction is:
MINUS SIGN

7. The number
that is
subtracted from

8. The number
that is
subtracted from
The number to be
subtracted from
another

9. The number
that is
subtracted from
The number to be
subtracted from
another
The number that
is left after
subtraction
- The result of
subtraction.

12. To help you remember the order of the minuend,
subtrahend and difference, commit this phrase to
memory:
"Me first. Subtract me. Done with the problem."
•m (for minuend) - me first, it comes first in the problem
•s (for subtrahend) - subtract me, it comes after the
minus sign
•d (for difference) - done with the problem, it is the
answer to the problem

13. Subtraction Sentence

20. Subtraction as the Inverse or Opposite
of Addition
Add: 45+23=

21. Subtraction as the Inverse or Opposite
of Addition
Add: 45+23=68
Subtract: 68-23=

22. Subtraction as the Inverse or Opposite
of Addition
Add: 45+23=68
Subtract: 68-23= 45
68-45=

23. Subtraction as the Inverse or Opposite
of Addition
Add: 45+23=68
Subtract: 68-23= 45
68-45= 23

24. MATHEMATICS
2