Two-Digit Addition

Vocabulary

100

The answer to an addition problem.

What is sum?

200

A number that is added to another number.

What is an addend?

300

What is the answer to a subtraction problem?

Difference

400

Counting by equal groups (a number other than one).

What is skip counting?

500

What is it called when we trade out 10 ones for a tens stick?

regrouping

Place Value

100

How many ones are in the number 28?

There are 8 ones.

200

How many tens are in the number 83?

There are 8 tens.

300

How many tens are in the number 6? 

There are 0 tens.

400

How many tens and ones are in the number 36?

3 tens and 6 ones

500

What is another way to write 9 tens and 3 ones?

93

Two-Digit Addition without Regrouping

100

26 + 13=

39

200

17 + 11=

28

300

32+16=

48

400

43 + 24 =

67

500

21 + 34

55

Two-Digit Addition with Regrouping

100

37 + 15 =

52

200

46 + 24 = 

70

300

63 + 29 = 

92

400

26 + 38 =

64

500

44 + 38

82

Word Problems

100

Emily's baseball team is playing a baseball game to raise money for a children's hospital. Emily's team scored 11 runs in the game. The other team scored 8 runs. How many runs were scored in all?

19 runs

200

Lauren has 17 cakes and 24 pies to sell at the bake sale. How many cakes and pies does she have to sell?

41 cakes and pies

300

Jordan sells 26 vanilla milkshakes and 19 chocolate milkshakes. How many milkshakes does Jordan sell in all?

45

400

67 leaves were on the ground and 23 more fell down. Now how many leaves are on the ground?

90

500

Mrs. Fuchs' garden has 24 red roses and 36 tulips. How many flowers does she have altogether?

60