Order Of Operations Review

Evaluating the Expression

100

(18 + 4) ÷ 2

11

200

(29 + 6) ÷ 5 = _______________

7

300

6 × (11 – (5 + 3)) = _______________

18

400

30 ÷ (13 – (11 – 3)) = _______________

6

500

1/3 × (14 + 16) = _______________

10

Writing Expressions

100

Write the expression for the sum of 9 and 5 divided by 2

(9+5) ÷ 2

200

The product of 8 and the sum of 15 and 17.

8 × (15 + 17)

300

7 less than the product of 23 and 41.

23 x 41 - 7

400

Ben has 6 bags of balloons. Each bag has 15 red balloons and 5 blue balloons. Which expression shows the total number of balloons Ben has?

6 × (15 + 5)

500

A notebook usually costs $7.25, but it’s on sale today for $4.75. If Sandy buys 5 notebooks today, which expression shows the total amount of dollars she saved?

5 × (7.25 – 4.75)

Dividing by powers of 10

100

70,000 ÷ 10²

700

200

569 ÷ 10³

.569

300

321,000 ÷ 10³

321

400

4,800 ÷ 10³

4.8

500

870 ÷ 10⁴ =

0.087

Multiplying by powers of 10

100

9 x 10⁴

90,000

200

40 x 10²

4,000

300

12.86 × 10³ =

12,860

400

0.509 × 10⁴ =

5,090

500

.06 x 10⁵

6,000