Order of Operations

Fix My Mistake

100

9 - 3 x 2 = 12

9 -3 x 2 = 3

200

809 000 in scientific notation is 8.9 x 10^5

8.09 x 10^5

300

5 x 5 +1 = 30

5 x 5 + 1= 26

400

4 + 5 + 7 - 3 x 2 = 26

4 + 5 + 7 - 3 x 2 = 10

500

The problem was 20 - 5 x 2 + 3. My answer was 33. What did I do wrong?

I did not multiply first. The answer should be 13.

Word Stuff

100

Give the correct order of operations.

BEDMAS

200

What form is this called? 3 x 10^5 + 4x 10^4 + 8 x 10^2

Expanded form using Powers

300

What form is this called?

4097

standard form

400

If I have addition and subtraction in my expression, I should move from ______ ___ _______.

left to right

500

These are all called.... 

2, 3, 5, 7, 11, 13, 17, 19.

Prime Numbers

Solve 1

100

3 + 6 x 4

27

200

Write 4356 in expanded form using powers of 10.

4 x 10^ 3 + 3 x 10^2 + 5 x 10^1 + 6x10^0

300

12 - 8 ÷ 2 + 3

11

400

20 ÷ (8-3) + 16

20

500

7 + 3 x (8 ÷ 4)

13

Solve 2

100

(14 + 6) x (12 -4) -9

151

200

(15 - 5) x 10  + 3

103

300

6 x 8 + ( 7 - 6 )

49

400

( 10 + 19 -5 ) x 2

48

500

Write 758 000 000 in scientific notation

7.58 x 10^8

Mixed Review

100

Write as a numeric expression: the sum of 9 and 3 divided 3

( 9  + 3) ÷ 3

200

What are the first 5 multiples of 9

9, 18, 27, 36, 45

300

Find the LCM of 20 and 32.

20, 40, 60, 80, 100, 120, 140, 160 

32, 64, 96, 128, 160

LCM= 160

400

Find the GCF of 8, 16, 20

8= 1,2,4,8  16= 1,2, 4,8,16   20= 1,2,4,5,10, 20

GCF= 4

500

Write as a product of prime factors 

18

2 x 3^2