Subtraction Stories
Model Subtraction
Subtraction Number Sentences
Subtract 0 and All
Vertical Subtraction
100
When you subtract, you __________________ a part of the whole.
Take Away.
100
When you know the ____________ and a part, you can find the part that is missing.
Whole
100
Which one is a Subtraction Number Sentence?
A. 3 = 3
B. 4 - 3 = 1
C. 2 + 2 = 4
B. 4 - 3 = 1
100
How much is Zero (0)?
Zero (0) is NOTHING.
100
Vertical Subtraction means you are subtracting ____________.
Down
200
You have 7 dragonflies sitting on a flower. 2 dragonflies fly away. How many dragonflies are left on the flower. Say the number that is left.
5 Dragonflies
200
3 yellow dots
200
The Difference is the:
A. First number in a Subtraction Number Sentence.
OR
B. The part that is left after you take away a number from the whole.
B. The part that is left after you take away a number from the whole.
(The Difference is the answer to a Subtraction Number Sentence).
200
When you subtract 0 from any number what happens to that number?
The number stays the same. It does not change.
200
If you subtract across AND subtract down using the SAME numbers, what answer will you get?
You will get the same difference (answer).
It doesn't matter if you subtract vertical or down, as long as you use the same numbers you will get the same difference (answer).
300
Tell a number story. Provide the answer.
8 birds were on the window. 3 birds fly away.
5 birds are left.
300
There are 10 toys in a toy box. Marty takes 8 toys out of the box. How many toys are left? Say the number.
2 Toys
300
What symbol is this?
_
Minus Sign
300
If I subtract ALL from the number 6, how much is left?
0
If you subtract (take away) a number from the same number, you have taken away ALL and nothing is left.
6 - 6 = 0
300
When you subtract down, can you put the smaller number at the top? For example:
No. The larger number most be on the top. You cannot subtract a smaller number from a larger number.
400
Tell me the number story for this picture. How many animals are left standing still?
7 Animals are standing still. 4 animals run away. How any animals are left standing still.
3 Animals
400
If you know the whole and one ________, you can subtract to find the other part.
Part
400
Say a Subtraction Number Sentence for the following picture.
7 - 2 = 5
400
How much does 4 - 4 = ?
0
400
You can subtract across, or you can subtract _______.
Down
500
How is Addition and Subtraction different?
With Addition, you join numbers to make a whole.
With Subtraction, you take away a part from the whole.
500
When you know the whole and one part, you can ________________ to find the other part.
Subtract
500
What does it mean when you see a minus sign (-)?
It means you are subtracting a number from another number.
Or
It means you are taking something away.
500
How much does 4 - 0 = ?
4
500
When you write a vertical subtraction number sentence, do you write the = symbol?
No. The line between the numbers you are subtracting and the answer (difference) is the equal sign.
