Find the Sum
Addition Fun!
Adding Ones, Then Tens
Wow! Adding Hundreds!
Mental Math Strategies
100

50 + 30=

What is 80

100

33+6 =

What is 39

100
45 +31 =
What is 76
100

342+406=

What is 748

100

8 + 9 = 

What is 17

200
400+300=
What is 700
200

41+7 =

What is 48

200
24 +61 =
What is 85
200

536+223=

What is 759

200

5 + 9 = 

What is 14

300

200+600 =

What is 800

300
64+4=
What is 68
300
What is the sum of seventy-six and twenty-one?
What is 97
300

231 and 147 are added. What is the sum?

What is 378

300

8 + 8 =

What is 16

400
500 +700 =
What is 1,200
400
When 3 is added to 46, what is the sum?
What is 49
400
63+33=
What is 96
400

505+381=

What is 886

400

16 + 10 =

What is 26

500

900 +600 =

What is 1,500

500
What is the sum of ninety-four and five?
What is 99
500

What is the sum of forty-four and eleven?

What is 55

500
176 and 212 are added. What is the sum?
What is 388
500

123 + 300 = 

What is 423

M
e
n
u