Show:
Addition
Subtraction
Multiplication
Division
?
100

x + 7x

8x

100

10y - 2y - y

7y

100

2x times 6y

12xy

100

(20x)/ 2

10x

100

What is the longest river in the world?

The Nile River

200

3x + 8y + 2x + 3y

5x + 11y

200

12a - 6b - 5b - 2a

10a - 11b

200

10a times 5ab

50a^2b

200

(28k)/ (7k)

4

200

What is the largest ocean on Earth?

Pacific Ocean

300

2x^2 + 3x + x^2 + 5x

3x^2 + 8x

300

3x^2 - 2x - x^2 - 10x

2x^2 - 12x

300

4e times 3de times 2f

24de^2f

300

(4x)/(8xy)

1/2y

300

Which planet is closest to the sun?

Mercury

400

12a + ab + 3b + 7ab + 8a + b

20a + 8ab + 4b

400

-3k - 10k - 5k - k

-19k

400

2w times -5wx

-10w^2x

400

(200m^2)/(100m)

2m

400

How many bones are there in the human body?

206

500

3w^3 + w^2 + 2w^4 - 2w^2

3w^3 - w^2 + 2w^4 

500

-10t - 2s - 5st - 3s - t - st

-11t -2s -6st

500

3h times -6hj times -jk

18h^2j^2k

500

(16ab^2c)/(10abc^2)

(8b)/(5c)

500

Which animal has rectangular pupils?

Goat