Relate Addition and Subtraction , True and False

Related by Counting Down

1

Find the two related subtraction fact: 

6+7=13

13-6=7

13-7=6

2

Find the two related subtraction facts.

5+6=11

11-5=6

11-6=5

5

Find the two related subtraction facts.

10+3=13

13-10=3

13-3=10

6

Find the two related subtraction facts.

9+5=14

14-5=9

14-9=5

10

Find the two related subtraction facts 

7+8=14

14-8=7       14-7=8

Vocabulary

1

The answer to an addition problem is called the _____

sum

2

The answer to the subtraction problem is called the ____________

difference

5

The two numbers you add together (1 and 3) to get the sum are called the _______ 

1+3=4

addends

6

To take away or to take part of the items from the whole group of items is called ________

subtracting

10

2 addition and 2 subtraction facts that use the same 3 numbers are part of a ___________

Fact Family

Family Relationship

1

What fact family has the following facts:

6+4=10        10-6=4

4+6=10        10-4=6

4, 6, 10

2

What fact family has the following facts:

7+2=9        9-2=7

2+7=9        9-7=2

2, 7, 9

5

What fact family has the following facts:

2+6=8       8-2=6

6+2=8       8-6=2

2, 6, 8

6

What fact family has the following 4 facts:

5+3=8             8-5=3 

3+5=8             8-3=5           

3, 5, 8

10

What fact family has the following facts:

4+1=5                  5-1=4

1+4=5                  5-4=1

1, 4, 5

Related by Counting Up

1

Find the two related addition facts.

11-7=4

7+4=11

4+7=11

2

Find the two related addition facts:

14-6=8

6+8=14

8+6=14

5

Find the two related addition facts.

9-3=6

3+6=9

6+3=9

6

Find the 2 related addition facts:

17-9=8

8+9=17

9+8=17

10

Find the two related addition facts.

12-4=8

4+8=12

8+4=12

Operations

1

4+9=

13

2

6+8=

14

5

5+7=

12

6

7+8=

15

10

10+9=

19