Even/Odd
Subtraction
Addition
100

Is 1 an odd number? 

YES
100

I have 10 apples. I give one away. How many do I have left?

9 apples

100

I have 5 cars. I buy 14 more cars. How many cars do I have? 

19 cars

200

Are 3 and 5 even numbers?

NO

200

There are 15 cars parked. 5 drive away. How many are left?

10 cars

200

Captain has $7. Sally has $6 that she gives him. What is the sum? 

13 dollars

300

Which one is odd? 11 or 22? 

11

300

I have 21 dollars. I buy an apple for 6 dollars. How many dollars do I have left?

15 dollars

300

There are 8 birds in the garden. 8 more come to the garden. How many birds are there in total? 

16 birds

400

Is 30-1 an odd or even number? 

ODD
400

Sally had 60 cookies. She gave 11 cookies to her friend. What is the difference? 

49 cookies

400

There are 5 diamonds in a chest. Sally adds 4 diamonds. Sarah adds 6 more diamonds. What is the sum of diamonds? 

15 diamonds 

500

Is 4x2 an odd number? 

NO

500

A music shop has 40 guitars. 24 are sold. How many guitars are left? 

16 guitars 

500

I buy 9 apples. The next day I buy 5 more apples. The next day I buy 6 more apples. How many apples do I have? 

20 apples