Chapter 1 Test

Solving equations

100

3+x=12

x=9

200

x-4=5

x=9

300

x/4 = 20

x=80

400

3x=12

x=4

500

3x=-15

x=-5

600

x-8=-30

x=-22

700

x+4=-30

x=-34

800

x/3=-9

x=-27

Solving complex equations

100

3x+1=10

x=3

200

4x-1=19

x=5

300

3(x+1)=21

x=6

400

(2(x+1))/2 =5

x=4

500

2(x-8)+7=13

x=11

600

2(x+1)+1=-9

x=-6

700

(2x-4)/2 = -8

x=-6

800

(2(x+2)-8)/2 =10

x=12

Evaluating Expressions

100

C-2    FOR C=4

2

200

X-X    FOR X =2

0

300

X-Y   FOR X=4    Y=1 

3

400

2(X-10)    FOR X=4

-12

500

.5(4X-2Y)  FOR X=2 Y=2

2

600

x/y

for x=4 y=16

1/4

700

2 xx 2/(3+x^2) for x=1

1

800

(xy)/(2y) for x=2 y=2

1

Factors/Divisibility

100

IS 280 DIVISIBILE BY 4

YES

200

WHAT ARE THE FACTORS OF 25

1X25, 5X5

300

IS 1828 DIVISIBLE BY 3 

NO

400

IS 280 DIVISIBLE BY 7

YES

500

FACTORS OF 144

1X144, 2X72, 3X48, 4X36, 6X24, 8X18, 9X16, 12X12

600

is 19875214 divisible by 9

no

700

factors of 75 

1x75, 3x25, 5x15

800

factors of 100

1x100, 2x50, 4x25, 5x20, 10x10

Writing Expressions

100

A NUMBER PLUS 7

N+7

200

THE DIFFERENCE OF 20 AND A NUMBER

20-N

300

THE QUOTIENT OF X AND Y 

X/Y

400

THE PRODUCT OF 2 AND Y

2Y

500

5 TIMES THE SUM OF X AND Y 

5(X+Y)

600

8 time the difference of 80 and 20y

8(80-20y)

700

9 times the product of 2 and y 

9(2y)

800

7 less than a number 

X-7

Solving Inequalities

100

x+1<4

x<3

200

x-1>4

X>5

300

x+8<10

x<2

400

x-3>-8

x>-5

500

2x<4

x<2

600

x/2<4

x<8

700

2x+1<10

x<9/2

800

x/3 +1 >-4

x>-15