Conventions & Substitution

Multiplication Conventions

100

Write using the proper conventions:

3 * y

3y

200

Write using the proper conventions:

x multiplied by 8

8x

300

Write using the proper conventions:

4 times 7 multiplied by p

28p

400

Write using the proper conventions:

zxy

xyz

500

Write using the proper conventions:

3*b*a*5

15ab

Division Conventions

100

Write using the proper conventions:

fifteen divided by three

5

200

Write using the proper conventions:

m divided by 6

m/6

300

Write using the proper conventions:

49m divided by 7

7m

400

Write using the proper conventions:

n over 3

n/3

500

Write using the proper conventions:

12 divided by 4c

3/c

Conventions

100

Write using the proper conventions:

4 times 3 divided by x

12/x

200

Write using the proper conventions:

k over 6 divided by 3

k/2

300

Write using the proper conventions:

(zx)/(r4)

(xz)/(4r)

400

Write using the proper conventions:

(14ca)/(7bd)

(2ac)/(bd)

500

Write using the proper conventions:

(4*x*6*y)/(16\div 2 *z)

(24xy)/(8z)=(3xy)/(z)

Substitution #1

100

Substitute when x=2:

3x-5

3(2)-5=1

200

Substitute when x=7:

4x+3

4(7)+3=31

300

Substitute when x=5 and y=2:

5x+y

5(5)+2=27

400

Substitute when x=3 and y=6:

2x+3y-5

2(3)+3(6)-5=6+18-5=19

500

Substitute when x=2, y=1, and z=4:

7x+4y-2z-5

7(2)+4(1)-2(4)-5=14+4-8-5=5

Substitution #2

100

Substitute when a=5:

25/a

25/5=5

200

Substitute when a=36:

a/9

36/9=4

300

Substitute when a=3 and b=12:

6/a +b/4

6/3+12/4=2+3=5

400

Substitute when a=2 and b=6:

28/(2a)+(4b)/3

28/(2(2))+(4(6))/8=28/4+24/8=7+3=10

500

Substitute when a=4, b=7, and c=3:

(3a)/2+21/b+30/(10c)

(3(4))/2+21/7+30/(10(3))=12/2+21/7+30/30=6+3+1=10