Subtracting Integers Using Algebra Tiles
Subtracting Integers Using Algebra Tiles
4 - (-5) = ?
If you have enough to take
away, subtraction of
integers is easy!
-5  - (-3) = ?
Take Away
So -5 - (-3) = -2
8 - 3 =

-10 - (-2) =

40 - 13  =

-100 - (-25) =

-53.4 - (-3.4) =
Practice Taking Away:
By adding zero pairs,
the number does not change!
Can't Take Away?
Use Zero Pairs
4 - (-5) = ?
By adding zero pairs,
the number does not change!
Can't Take Away?
Use Zero Pairs
4 - (-5) = ?
zero pairs
Now take away
4 - (-5) =
Can't Take Away?
Use Zero Pairs
4 - (-5) = ?
zero pairs
is the same as:
Notice:
4 - (-5) =
4 + 5 =
Can't Take Away?
Use Zero Pairs
4 - (-5) = ?
zero pairs
Can't Take Away?
Use Zero Pairs
-4 - 4 = ?
Can't Take Away?
Use Zero Pairs
-4 - 4 = ?
zero pairs
-4 + (-4) =
-4 - 4 =
Can't Take Away?
Use Zero Pairs
-4 - 4 = ?
zero pairs
Can't Take Away?
Use Zero Pairs
2 - 5 = ?
zero pairs
2 + (-5) =
2 - 5 =
Can't Take Away?
Use Zero Pairs
2 - 5 = ?
zero pairs
-1 - (-3) = ?
Can't Take Away?
Use Zero Pairs
-1 - (-3) =
-1 + 3 =
-1 - (-3) = ?
Can't Take Away?
Use Zero Pairs
zero pairs
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