Addition
Subtraction
Column addition
Key Words
Word Problems
100

14 + 7

21

100

15 - 7

8

100

18, 5, 7

30

100

in all

addition

100

A sea turtle lays about 110 eggs and a Hawksbill turtle lays 200 eggs.  How many more eggs does a Hawksbill turtle lay than a sea turtle?  

90 more eggs

200

45 + 10

55

200

55 - 10

45

200

49, 18, 4

71

200

fewer

subtraction

200

There were 110 sea turtle eggs.  65 eggs hatched and walked to the ocean.  23 eggs hatched but are still on the sand.  How many eggs have NOT hatched yet?  

22 eggs have not hatched

300

86 + 76

162

300

82 - 20

62

300

124, 98, 12

234

300

combined

addition

300

A snapping turtle can weigh about 45 pounds.  If you have two snapping turtles what is their combined weight? 

90 pounds

400

222 + 222

444

400

123 - 85

38

400

489, 31, 127

647

400

difference

subtraction

400

A Loggerhead turtle weighs 350 pounds, a Green turtle weighs 500 pounds and a Ridley sea turtle weighs 105 pounds.  How much do these turtles weigh altogether? 

955 pounds

500

548 + 234

782

500

674 - 325

349

500

398, 456, 894

1748

500

how much more

subtraction

500

There are 37 kids playing at the beach.  13 more kids join them.  22 kids go home to each lunch.  How many kids are still playing at the beach? 

28 kids 

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