True or false: all multiplication must be simplified before any division
a)
True
b)
False
3.
True or false: all addition must be simplified before any subtraction
a)
True
b)
False
4.
What are the steps to simplify the following expression?
50−16÷2
a)
add, multiply
b)
subtract, divide
c)
divide, subtract
d)
subtract, multiply
5.
Find and explain the error. 5 - 3 + 2 5 - 5 0
a)
There is no error.
b)
Addition was done first and you should have subtracted first
c)
There is a subtraction error
6.
Which problem has a solution of 24?
a)
−6+6(3)
b)
−8+4(9−1)
c)
−10+2(2)
d)
7+1(11−8)
7.
Simplify
8−30+25
a)
47
b)
-47
c)
3
d)
-3
8.
Simplify
8+(−4)÷4
a)
-7
b)
1
c)
-1
d)
7
9.
Simplify
−3(−5)−16
a)
-8
b)
1
c)
-31
d)
-1
10.
Simplify
2+(92−4)
a)
16
b)
87
c)
79
d)
24
11.
Simplify
2(2)15−3−8
a)
-5
b)
1
c)
5
d)
11
12.
Simplify
−56÷(−7)−(−3)
a)
5
b)
11
c)
-5
d)
-11
13.
Simplify
5−62÷4−3
a)
1
b)
-1
c)
7
d)
-7
14.
-42 ÷ (-6) + 5 - 8
a)
4
b)
10
c)
-10
d)
-4
15.
( (-4)2 - 2) x (-3)
a)
-42
b)
-18
c)
54
d)
12
16.
8 - (-3) x 41 + 22
a)
48
b)
24
c)
12
d)
0
17.
2x + 5(y - 1) when x=8 and y=5
a)
20
b)
31
c)
36
d)
-4
18.
Choose an expression to match the situation:
I bought a shirt for 35% off the original price. The original price was $45. Let the price of the shirt be s.
a)
0.35s
b)
0.35s + 0.65s
c)
0.65(s)
d)
45 - 35
19.
On a number line, what is the distance between -61.5 and -23.4?
a)
-84.9 units
b)
84.9 units
c)
-38.1 units
d)
38.1 units
20.
Eleni withdrew $45 from her savings account. She then used her debit card to buy groceries for $30.15. What was the total amount Eleni took out of her account?