Pre-Algebra Final Review Game#1B

Evaluating Algebraic Expressions

100

x-15" for "x=17

17-15

2

200

a+(-5)" for "a=12

12+(-5)

7

300

6d+(d-3) "for "d=5

6(5)+(5-3) " "implies" "30+2

32

400

(s-2)/9 " for "s=34

(34-2)/9

32/9  " ("or 3 5/9")"

Solving Equations

100

p-23=58

p-23+23=58+23

p=81

200

3/4b=5

(4/3)3/4b=5(4/3)

b=20/3"  ( "or b= 6 2/3" )"

300

y/-5=-9

((-5)y)/-5=-9(-5)

y=45

Translating

100

7 less than a number

n-7

200

13 increased by twice a number

13+2n

300

the product of a number and 11

11n

400

4 times the sum of a number and 5

4(n+5)

Comparing Numbers

100

"Compare. Use "lt, gt, or =

17.450"_____"17.45

=

200

"Compare. Use "lt, gt, or =

3"____"-7

3gt-7

300

"Compare. Use "lt, gt, or =

-8"____"-5

-8lt-5

Prime or Composite?

100

Is 39 prime or composite?

Composite

39=3cdot13

200

Is 2 prime or composite?

Prime

2 is the smallest prime number 

(and the only even prime number).

300

Prime or composite?

2cdot3cdot4+5

Prime

2cdot3cdot4+5" "implies" "6cdot4+5" "implies" "24+5" "implies" "29

400

Prime or composite?

2+4+7-1

Composite

2+4+7-1" "implies" "6+7-1" "implies" "13-1" "implies" "12" "implies3cdot4