Order of Operations w/ Rational Numbers

Omar played a math game and had cards with the five values shown below.

7 , 1 , -5 , 2 , -10

His score was the sum of the numbers on these five cards. What was Omar's score?

• -5

• 25

• 5

• -9

Tags

CCSS.7.NS.A.1C

Simplify:

-8 ( -3 + -10 ) + (-5)

• 109

• 99

• -109

• -99

Tags

CCSS.6.EE.A.2C

What value is equivalent to:
 $5\ \times12\times3\div\left(-6^2\right)$  

• -15

• 5

• -5

• 15

Tags

CCSS.7.EE.B.3

One of Ms. W's students were working on a homework problem:
 $-2\left(8-10\right)^2+4\div-6$  

They showed their work
 $-2\left(-2\right)^2+4\ \div-6$  
 $-2\left(-4\right)+3\div-6$  
 $8+3\div-6$  
 $8+-\frac{1}{2}$  
 $=\ 7\ \frac{1}{2}$  

Can you identify the mistake?

• It was an order of operations mistake in step 3

• It was a multiplication mistake with the exponent in step 2

• The student made a simple subtraction error in step 1

• It was a division mistake in step 4

Tags

CCSS.7.NS.A.3

Solve.
5 x (7 - 4) - 3 x 2

• 0
• 18
• 9
• 15

Tags

CCSS.6.EE.A.2C

Solve:

• 14
• 4.96
• 10

Tags

CCSS.7.NS.A.3

-4 - (1 - 5) - (-4)²

• -24
• -16
• -12
• 16

Tags

CCSS.7.NS.A.3

-7w² + 2w if w = -4

• 104

• -64

• -120

• 120

Tags

CCSS.6.EE.A.2C

12x ÷ 4y if x = -8 and y = 3

• -8

• 72

• -72

• 8

Tags

CCSS.6.EE.A.2C

• -2/3

• 2/3

• 4/5

• -3/4

Tags

CCSS.7.EE.B.3