Addition and Subtraction of Single Digits

the answer to an addition problem

• factor

• addend

• product

• sum

a number that is added to another number

• digit

• addend

• factor

• sum

the answer to a subtraction problem

• sum

• difference

• factor

• quotient

4+4=

• 8

• 9

• 10

3+5

• 8

• 9

• 7

• 10

7+1

• 7

• 8

• 9

• 6

3 birds and 2 more birds. How many birds? 

• 4

• 3

• 5

• 6

10-9=

• 0

• 1

• 10

3+5

• 8

• 2

• 5

1+3=

• 4

• 5

• 6