Grade 8 - Order of Operations with Decimals

Exponents

100

6³

216

200

2⁴

16

300

3²

9

400

4³ - 20

44

500

23 - 2³ + 9

24

Order of Operations

100

what does BEDMAS stand for?

Brackets

Exponents

Division & Multiplication (in order from left to right)

Addition & Subtraction (in order from left to right)

200

2 x (10 + 7)

34

300

(10 - 2 x 3) + (2 x 1)

6

400

2.6 x (3.1 + 2.3 - 4)

3.64

500

(4.1 x 2)² + 12.24 - 2³

71.48

Decimals

100

The digit in the thousandths place 34.2564

6

200

3.56 - 3.4829 =

0.0771

300

Round to the nearest hundredth

12.5789

12.58

400

Round to the nearest tenth

1.89356

1.9

500

1.34 + 1.3756

2.7156

Operations with Decimals

100

3.6 x 1.5

5.4

200

4.38 + 1.9 + 24

30.28

300

234 - 1.436

232.564

400

4.1 x 2.57

10.537

500

28.4 divided by 0.4

71.0

Mixed Bag

100

What is the strategy for multiplying by 4?

Double Double! Double your number, then double it again!

200

How many days are there in a year?

365 (unless it is a leap year - that has 366 days)

300

What is the strategy for multiplying by 6?

Multiply by 5, then add another group.

400

What is the strategy for multiplying by 9?

Multiply by 10, then subtract a group.

500

Is lunch at 12:25am or 12:25pm?

12:25pm - 12:00am is midnight!