Order of Operations and Expressions

Find and explain the error

Step 1: $\left(10-8\div2\right)+6$  

Step 2:  $\left(2\div2\right)+6$  

Step 3: $1+6$  

Step 4: $7$  

• Division error

• Subtraction was done first when division should have been done first

• Division was done first when subtraction should have been done first

• Subtraction error

25 x 2 - 7

• 125
• 57
• 43

Tags

CCSS.6.EE.A.2C

9 - 3 + 4

• 10
• 2
• 16

4 + 2 x 7

• 42
• 14
• 18
• 56

18 + (6 – 2) × 2

• 26
• 29
• 44
• 40

Salio bought 3 slices of pizza.  Each slice cost $3. How much will 3 slices cost?

• $3 x 3
• 3 ÷ 3
• $3 + 3
• 9 ÷ $3

Tags

CCSS.6.EE.B.7

What step would I do second ? (4-2) x 9 + 7 =

• multiplication
• subtraction
• addition
• dividing

24 × (20 + 5)

• The product of 24 and 20 plus 5
• 24 times the sum of 20 and 5
• The product of the difference between 20 and 5
• The sum of 24 and 20 and 5

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

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

• 0
• 18
• 9
• 15

Tags

CCSS.6.EE.A.2C

9 - 3 + 4

• 10
• 2
• 16