Addition
Subtraction
Addition
Subtraction
Challenge
100

7+7= ?

What kind of fact is this? 

14 

Doubles Fact

100

4 - 4 =?

What kind of fact is this?

0

Take all fact

100

4+1=?

What kind of fact is this?

5

Count on facts

100

18 - 10=?

What kind of fact is this?

8

Take away ten fact

100

What do all doubles facts have in common? 

The sum is always EVEN!

100

10+4=?

What kind of fact is this?

14

Add ten fact

100

16 - 10 =?

What kind of fact is this?

6

Take away ten facts

100

5+5=?

What kind of fact is this?

10

Doubles fact

100

4 - 4=?

What kind of fact is this?

0

Take all facts

100

What does the word SUM mean?

The answer you get when you add two or more numbers together.

100

4+6= ?

What kind of fact is this? 

10

Make Tens Fact

100

14 - 4=?

What kind of fact is this?

10

Back to ten facts

100

2+10=?

What kind of fact is this?

12

Add ten facts

100

6 - 0=?

What kind of fact is this?

6

Zero fact

100

What does DIFFERENCE mean?

The answer you get when you subtract two or more numbers. 
100

6+0=?

What kind of fact is this? 

6

Add Zero Facts

100

8 - 2=?

What kind of fact is this?

6

Count back fact

100

7+3=?

What kind of fact is this?

10

Make ten fact

100

12 - 10=?

What kind of fact is this?

2

Take away ten fact

100

What does the community property mean? 

You can flip flop two or more numbers around when adding and still get the same sum.

EX. 4+6=10 and 6+4=10

100

8+1=?

What kind of fact is this?

9

Count on fact

100

9 - 0=?

What kind fact is this?

9

Zero fact

100

5+2=?

What kind of fact is this?

7

Count on fact

100

9 -2=?

What kind of fact is this?

7

Count back fact

100

Can I flip numbers around when I subtract and still get the same answer? 

NO! The Community Property does not work with subtraction.

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