Cortez Crew Math Review

Order of Operations

100

What would you start with to solve this problem:

1 + 4 x 7

4 x 7

200

What does PEMDAS stand for?

Parentheses, Exponents, Multiplication,

Division, Addition, Subtraction

300

What are the first two steps to solve this problem:

2 + 7 ÷ 8 + 23 x 455 - 6

7 ÷ 8, 23 x 455

400

Solve this numerical expression:

18 ÷ 3 - 7 + 2 x 5

6 - 7 + 2 x 5

6 - 7 + 10

-1 + 10

9

500

Solve this numerical expression:

(17 - 6 ÷ 2) + 4 x 3

(17 - 3) + 4 x 3

(14) + 4 x 3

14 + 12

26

Solving Equations with Variables

100

Is the following an equation:

2x + 2

Write "Yes" or "No"

No

200

Solve the following equation:

3x + 12 = 48

3x + 12 = 48

x + 12 = 16

x = 4

300

What value of x makes the expression 2x + 6 equal 12?

2x + 6 = 12

2x = 6

x = 3

Check!

2(3) + 6 = 12

6 + 6 = 12 YES

400

Which of the following pairs of equations has the same solution?

1. x = 2 and 2 x = 4
2. x + 3 = 6 and x + 4 = 8
3. x / 2 = 2 and x = - 4
4. 3 x = 9 and x + 1 = 4

a.  x = 2

d.  x = 3

500

Solve the following equation:

5x + 10 - 45(5) + 3 = 210

5x + 10 - 45(5) + 3 = 210

x + 10 - 45(5) + 3 = 42

x + 10 - 225 + 3 = 42

x - 215 + 3 = 42

x - 212 + 42

x = 254

Multiply

100

Solve:

1 x 7

7

200

Solve:

12 x 11

132

300

Solve:

153 x 7

1,071

400

Solve:

161 x 42

6,762

500

Solve:

201 x 123

24,723

Divide

100

Solve: 

8 ÷ 4

2

200

Solve:

27 ÷ 3

9

300

Solve:

256 ÷ 4

64

400

Solve:

4,075 ÷ 5

815

500

Solve: 

1,089 ÷ 11

99

Random Math

100

Solve for 47 - u, when u = 23

47 - u, and u = 23

47 - 23

24

200

Which is the larger number:

-2 or -5

-2

300

Solve:

0 x 0

1

400

Identify next to each of these numbers whether they are a fraction, whole number, or decimal:

3/5

18.2

47

3/5 = fraction

18.2 = decimal

47 = whole number

500

Work together with your table to draw something to share with the class---1 minute!!

:)