Algebra so far

5A

100

what is a pronumeral and a coefficient?

provide an example including both

a pronumeral is any letter that represents a number.

A coefficient is the number in front of a pronumeral.

Example; 3m

200

How many terms are in the following expression?

31-27a+15n

3

300

write the following as an expression without using multiplication or division sign.

5 is added to y, then the result is doubled 

2(5+y)

400

describe the expression in words;

7h

possible responses

The product of 7 and h

7 lots of h

500

Mikayla is paid $m an hour at her job. write and expression that could be used if Mikayla received a pay increase of $3 and worked 8 hours

8(m+3)

5B

100

what does it mean to evaluate an expression?

Replace each pronumeral in an expression with a number

200

if t=4, evaluate the following

7t

28

300

if a=3 and b=6, evaluate the following;

5a+2y

27

400

if s=5 evaluate the following;

40-3s-s

20

500

a number is substituted for g in the expression 7+g and the result is 12.

What is the value of g?

g=5

5C

100

why can two expressions be called equivalent?

Expressions can be equivalent when they are always equal, regardless of what numbers the pronumerals are substituted for 

200

are 3e and e+e+e equivalent?

yes

300

which two expressions are equivalent?

4k

2k+4

k+4+k

2k+4 and k+4+k

400

Which two expressions are equivalent?

5a

4a+a

3+a

5a and 4a+a

500

Which of the following are equivalent

2w+2

3+2w

2(w+1)

2w+2 and 2(w+1)

5D

100

How can terms be considered like terms?

provide and example

if the terms contain exactly the same pronumerals, but not always in the same order

example 3t and 17t

200

are the following like terms

38hg and 98gh

yes they are like terms

300

simplify the following by collecting like terms;

3r+2r

5r

400

simplify the following by collecting the like terms;

7+2b+5b

7+7b

500

Simplify the following by collecting like terms;

7ab+32-ab+4

6ab+36

5E

100

when simplifying expressions with multiplication, after you have rearranged the expressions, what should be first, the numbers or the letters?

all of the numbers

200

when simplifying expressions with division, what do we cancel out in the numerator and denominator? 

the common factors

300

simplify the expression

2k x k

2k²

400

simplify the following 

4xy

____

2x

2y

500

simplify the expression, 

12pqr

_____

15pr

4q

_____

5