Equations

order of operations

100

 the acronym for the order of operations

What is: PEMDAS

parenthesis

exponents

multiply & divide (left to right)

add & subtract (left to right)

200

 7 + 3 x 4

What is 19

300

 33 ÷(6 + 5)

What is 3

400

50 – 6 x 2³

What is 2

500

20 ÷ 5 ÷ 2 + 1

What is 3

Translate

100

•  Double a number, plus 5 

2n+5

200

Half a number, minus 10

1/2 n -10

300

30a – 5a – 8              when a = 2

30(2)- 5(2)-8

60-10-8=

50-8=42

400

The product of a number squared and the sum of 8 and 6

(8+6)n² 

500

The quotient of a number and 7 increased by 10

n/7 +10

Evaluate

100

9 – 4

5

200

10 + 2(5) – 14

6

300

65 ÷ 5 + 8 x 4

45

400

10p + 4p – 6 + 5m   when p = 3 and m = 4

10(3) +4(3)-6+5(4)=

30+12-6+20=56

500

42 + 6 ÷ 3 + 5

49

Like Terms

100

•7 + 3x3 – y  when x=2 and y = 4

•

•7 + 3(2)3 – 4

•7 + 3(8) – 4

•7 + 24 – 4

•31 – 4

•27

200

•7 + 3x³ – y  when x=2 and y = 4

•7 + 3(2)³ – 4

•7 + 3(8) – 4

•7 + 24 – 4

•31 – 4

•27

300

•12 + a²                    When a = 4  b =0.3  c =0.2    b – c 

  

•12 + 4²     

  0.3 – 0.2

•12 + 16     

  0.3 – 0.2

•28/ 0.1

•280

400

•7a + 10a – 19

•17a – 19

500

•9x² + 15x – 4x²

•5x² + 15x

Solve

100

f – 7 = 14

21

200

 4c = 16

4

300

d ÷ 5 = 12

d=60

400

   e + 4.5 = 13

8.5

500

•    P= 2(L + W)                        When L = 12                                                and W = 5

34