Addition
Subtraction
One more/ One Less
Who is right?
What number am I?
100

6 + 6 =

What is ?

12

100

8 - 4 =

What is 4?

100

This is ten more than 12.

What is 22?

100

Alex and Bailey are trying to figure out which number they could put in the box to make the equation true.

2 = ___÷8

Alex thinks the number is 16.

Bailey thinks the number is 4.

What is 16 Alex is right?

100

Start with the number 4. Now add 3. After you get your answer, add 2 more. Then, subtract 1. What number am I?

What is 8?

200

8 + 3 = 

What is ?

11

200

15 - 4 =

What is 11?

200

This is ten more than 19.

What is 29?

200

Nick and Maddie are trying to figure out which number they could put in the box to make the equation true.  2 = __    ÷12

Nick thinks the number is 6.

Maddie thinks the number is 24.

What is 24?

Maddie is right.

200

Start with the number 4. Now add 4. After you get your answer, add 8 more. Then, subtract 9. What number am I? 

What is 7?

300

7 + 5 =

What is ?

12

300

14 - 2 =

What is 12?

300

This is ten less than 25.

What is 15?

300

Kellie and Jose are trying to figure out which

number they could put in the box to make the

equation true. 3 = __ ÷ 12

Kellie thinks the number is 36.

Jose thinks the number is 4.

What is 36?

Kellie is right.

300

Start with the number 11. Now add 4. After you get your answer, add 2 more. Then, subtract 7. What number am I?

What is 10.

400

12 + 5 = 

What is?

17


400

19 - 11 =

What is 8?

400

This is ten less than 50.

What is 40?

400

Logan and Ava are trying to figure out which

number they could put in the box to make the

equation true. 12 = ÷ 8

Logan thinks the number is 56 .

Ava thinks the number is 96.

What is 96?

Ava is right.

400

Start with the number 9. Now subtract 6. After you get your answer, add 9. Then, add 3 more. What number am I?

What is 15?

500

13 + 4 =

What is?

17


500

21 - 4 =

What is 7?

500

This is ten more than 90?

What is 100 ?

500

Malachi and Jari are trying to figure out which

number they could put in the box to make the

equation true. 12 = ÷ 11

Malachi thinks the number is 131.

Jari thinks the number is 132.

What is 132?

Jari is right.

500

Start with the number 10. Now add 9. After you get your answer, add 1 more. Then, subtract 9. What number am I?

What is 11?

M
e
n
u