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Math 6 - Unit 4: Expressions Review Flashcards | StudBud
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Math 6 - Unit 4: Expressions Review
Math 6 - Unit 4: Expressions Review
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1
If a=5, b= 8 and c=10; what is the value of c/a
2
105
10/5
50
2
A constant is...
It is value that does not change.
A value that can be multiplied.
A number by itself
a and b are correct
3
Is 4 ÷ 4 + 4 x 4 – 4 = 6 x 5 – 9 x 3 + 10
True
False
4
What would the verbal expression for 7 - m/2, be?
m divided by 2 less than 7
all of the above
7 minus the quotient of m and 2
seven minus m divided by 2
5
An expression has an equal sign?
False
True
6
An equation has an equal sign?
False
True
7
If a=5, b= 8 and c=10; what is the value of ac
510
50
80
40
8
A number that multiplies a variable in an algebraic expression.
term
coefficient
expression
variable
9
Is subtract twelve from a number. 12 - n?
True
False
10
If a=5, b= 8 and c=10; what is the value of ab – c
10
48
28
30
11
What is Algebra
A branch of mathematics that helps us find values.
all of the above
A branch of mathematics that uses letters or symbols.
Algebra is the branch of mathematics that uses variables.
12
If a=2, b=3 and c=5. What is: b+ac?
55
17
7
13
13
Terms .....
are separated by + or − signs.
are single numbers.
multiply variables
are the same as expressions.
14
In (2 + 5)², you do 5² first.
False
True
15
An operator
Is represent by (x) or (÷) in a mathematical expression
Is represent by all operations (+, –, x, ÷) in a mathematical expression.
Is represent by addition (+) or (-) in a mathematical expression
non of the above.
16
A symbol (usually a letter) used to represent a quantity that can change.
coefficient
variable
operator
constant
17
The coefficient is always written in front of a number.
False
True
18
What is the last step you would solve in: 5 + (3² x 7 + 6) x 8
do the parenthesis
multiply by 8
add 5
find 3ˆ2
19
In this expression, what would you do first in: 100 – (50 + 6² x 2) x 2
exponent
multiplication
parenthesis
subtraction
20
What is the algebraic expression of 6 divided by a number?
n ÷ 6
6 ÷ n
6/n
n/6
21
What is the correct numerical expression? 30 less than a number
30n
30 - n
n - 30
30 x n
