Operations
If b represents a negative number, is b x b a positive or negative number? Why?
A negative multiplied by a negative is a positive.
Simplify:
7x + 2 - 5 + 8
7x + 5
What is |13| ?
13
Evaluate x2(y-5+x) for x=4 and y = 12
176
Compare the following using <, >, =
1 2/25 _________ 1.052
1 2/25 _____>____ 1.052
Greater than
Solve with NO CALCULATOR:
(-1.3) − (-4.3) =
3 :)
Simplify the expression:
-7x + 3y +5x - 11y - 9y +3x
x - 17y
What is 9/16 as a decimal rounded to the hundredth place?
0.56
Evaluate:
24(5.2 − 3.2) ÷ 4
8
Order the values from least to greatest:
7/8, 0.85, 87%, 3/4, 78%
Remember to write your answer using the values given to you!
3/4, 78%, 0.85, 87%, 7/8
Solve and write your answer as a fraction:
7.5 − ( - 3 1/6 )
10 2/3
Simplify:
-13x - 5x - 4y + 15y + 3y - 2x
-20x + 14y
Which of the following fractions will result in a repeating decimal?
A) 7/10 B) 5/12
C) 5/8 D) 3/5
A) 7/10 = 0.7 B) 5/12 = 0.41666.....
C) 5/8 = 0.625 D) 3/5 = 0.6
Evaluate −8x + 5 − 2x − 4 + 5x for x = 2.
− 9
Order from greatest to least:
- 1/4 , - 6/8 , 1 4/5 , -0.5 , 1.4
Remember to write your answer using the values given to you!
1 4/5, 1.4, - 1/4, -0.5, -6/8
Solve and write your answer as a decimal.
- 1 1/2 − ( -1 3/4 ) =
0.25
Simplify:
7x + 7y - 7x + 8y +12
15y + 12
What is the absolute value of 1.25 as a fraction?
1 1/4
Evaluate:
82 − 5(3)
3+22
7
Compare the following using <, >, =
(4/9 ÷ 5/7) ________ (6.64 ÷ 8.3)
(4/9 ÷ 5/7) ________ (6.64 ÷ 8.3)
0.6222... ______<_____ 0.8
Which of the following has the same value as
- 2/3 − (- 4/9) ?
A) 3/2 ÷ - 1/3 B) - 2/3 × - 1/3
C) - 1/3 − 7/9 D) - 1/3 + 1/9
A) 3/2 ÷ - 1/3 = - 4 1/2 B) - 2/3 × - 1/3 = 2/9
C) -1/3 − 7/9 = - 1 1/9 D) - 1/3 + 1/9 = -2/9
Simplify:
- 2/3c — 9/5 + 14c + 3/10
13 1/3c — 1 1/2
What is the opposite of 19/4 as a decimal rounded to the tenth place?
-4.8
Evaluate for when x = 10.6 and y = 1.2
x − 3.4
-5y2
-1
Write the numbers in order from least to greatest:
−2.04, −1.75, −2.4, −2.19, −1.8
−2.4, −2.19, −2.04, −1.8, −1.75