GEMDAS (Order of Operations)

Ordering Decimals

100

Which is smallest?

 .75   .5  .99  1/4

1/4

200

 Order from least to greatest

1.11

1.1 

1.01

1.01  1.1  1.11

300

Order greatest to least:

1.0  .99  1.0001

1.0001  1.0  .99

400

Which is larger?

7.9    7.8999

7.9

500

Which is largest?

9.08     8.99   9.1

9.1

Fix My Mistake

100

9 - 3 x 2 =12

Correct answer is 3. Multiply then subtract, not subtraction then multiplication.

200

5  + 1 x 2 = 12

7

300

9 + 1 * 7  = 70

16

400

4 + 5 + 7 - 3 x 2 = 26

You need to follow GEMDAS and multiply first. Correct answer is 10.

500

10 + 5 / 5 = 3

11

Solve

100

3 + 4 x 5

23

200

7 + (2 x 4) - 1

14

300

32 ÷ (4+4) + 3

5

400

20 – (5+3) x 2 + 4

8

500

(5 x 4) – 6 ÷ 2 + 9

26

Solve

100

14 - 2 x 7

0

200

49 ÷ (3+4) + 5

12

300

5 + 14 ÷ 2 × 5

40

400

(4 - 1) + 2(5+ 1)

15

500

1 + 2 x 3 - 4

4

Review

100

I have $100. I spend 89 cents. How much do I have now?

$99.11

200

How do we multiply fractions?

Multply multiply

300

How do you divide fractions?

Keep change flip

400

What do you need to add and subtract fractions?

common denominators

500

change this to a mixed number:

25 / 7

3  4/7