Order of Operations & Expressions

12 x (13 - 10)

• 12 times 13 minus 10

• 13 minus 10 times 12

• 12 times the difference of 13 and 10

• the difference of 13 and 10 times 12

Mary has 3 boxes of key chains. There are key chains in each box. Each key chain has 6 beads. The expression below shows the total number of beads on these key chains.

(3 x 8) x 6

Which expression could also be used to fin the total number of beads on these key chains?

• 6 x (3 x 8)

• 6 + (3 x 8)

• 6 x (3 + 8)

• 6 + (3 + 8)

Which expression represents the story problem: Brian spent $10 for a binder. He then bought 5 folders for $2 each. How much money did Brian spend in all?

• 10 + 5 x 2

• 10 - 5 x 2

• 10 + 5 + 2

18 + (6 – 2) × 2

• 26

• 29

• 44

• 40

23+(30÷10)x4

• 35

• 32

• 12

• 45

4 + 2 x 7

• 42

• 14

• 18

• 56

Dino had $40 and then he spent $12 on a shirt and $20 on a pants. 

• $40 + (12 + 20)

• $40 - (12 + 20)

• $40 X (12 + 20)

• $40 + (20 + 12)

eight more than the product of 3 and 2

• (3x2) - 8

• (8+3) / 2

• 8 + (3 x 2)

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

24 decreased by the sum of 6 and 3

• 24 - (6 +3)

• 24 + 6 +3

• 24 - 6 -3