Addition
x + 7x
8x
10y - 2y - y
7y
2x times 6y
12xy
(20x)/ 2
10x
What is the longest river in the world?
The Nile River
3x + 8y + 2x + 3y
5x + 11y
12a - 6b - 5b - 2a
10a - 11b
10a times 5ab
50a^2b
(28k)/ (7k)
4
What is the largest ocean on Earth?
Pacific Ocean
2x^2 + 3x + x^2 + 5x
3x^2 + 8x
3x^2 - 2x - x^2 - 10x
2x^2 - 12x
4e times 3de times 2f
24de^2f
(4x)/(8xy)
1/2y
Which planet is closest to the sun?
Mercury
12a + ab + 3b + 7ab + 8a + b
20a + 8ab + 4b
-3k - 10k - 5k - k
-19k
2w times -5wx
-10w^2x
(200m^2)/(100m)
2m
How many bones are there in the human body?
206
3w^3 + w^2 + 2w^4 - 2w^2
3w^3 - w^2 + 2w^4
-10t - 2s - 5st - 3s - t - st
-11t -2s -6st
3h times -6hj times -jk
18h^2j^2k
(16ab^2c)/(10abc^2)
(8b)/(5c)
Which animal has rectangular pupils?
Goat