Maths Quiz B: algebra basics

Question 1

What could the expression 2a +5b stand for?

Accepted Answer

how many adults there are for every 5 babies, How many apples and bananas we buy each week, the number of women (a) and men (b) in a company

Question 2

I am having a party. Each guest gets 2 snacks and 4 drinks. Which expression shows this?

Accepted Answer

g(2 + 4), 2g + 4g, 2 x g + 4 x g

Question 3

In Maths, what is an expression?

Accepted Answer

an equation with letters and numbers in it

Question 4

a = 10, so solve 2a + 6

Accepted Answer

26

Question 5

Which of these could be used as a VARIABLE?

Accepted Answer

b

Question 6

I need 2 tubes of white paint and 1 tube of red for each picture I paint; which expression shows this?

Accepted Answer

2w + r

Question 7

If p = 2, what is 5p + 2

Accepted Answer

12

Question 8

We need one adult for every 4 kids on a trip. What expression shows this?

Accepted Answer

a + 4c, 1a + 4c

Question 9

If I have 2 cats and 3 rabbits, what expression shows this?

Accepted Answer

2c + 3r

Question 10

In my family there are 5 adults and 2 children. What expression show this?

Accepted Answer

5a + 2c, n = 5a + 2c

Question 11

Which of these is algebra?

Accepted Answer

2(c + 4), 2a + 3 = b

Question 12

Why do people use letters in algebra?

Accepted Answer

letters are faster than writing whole words, the letters stand for an unknown number

Questions 12