B.I. Math App 1 exercise

Word to Algebraic

100

The square of y

Y²

200

the sum of a and b, divided by 3

(a + b)/3

300

Five increased by four times a number.

5 + 4a

400

The product of 

4(n-7)

500

The quotient of fourteen and the cube of a number

14/v³

Algebraic to word

100

4 + x

4 greater than a number x

200

3x + 5 

the sum of three times a number and 5 

300

5(x-3) 

the difference x and 3, times 5  or  x decreased by three, times 5 

400

(x/3)² 

the quotient of x and 3, squared

500

a² - b²

The difference of the square of a and b 

Simplify 1

100

-2x -7x 

-9x

200

-3m + 4n - 6m +3

-9m + 4n + 3

300

5x -5y +3x - 3y + 8xy

8x - 8y + 8xy

400

3(3x -2) + 8x

17x - 6

500

3x² + 2x - 5x + 3x² -8x

6x² - 11x 

Simplify 2

100

3(2y - 4)

6y-12

200

4x(2x -5) - 2x

8x² - 22x

300

-(3x - 2x)

-x

400

2(x+5) + 3(x+2) 

5x + 16

500

2/3(6x - 7) 

4x - 14/3

Try your luck

100

If 2x -5 = 7, what is x ? 

x = 6

200

If you divide 30 by a half and add 10 what do you get? 

70

300

When I was 12 my sister was half my age. I'm now 42. How old is my sister? 

My sister is 36

400

How many times can you subtract 4 from 20? 

Once ! After the first subtraction you will be performing the subtraction with 16

500

Using addition only, add eight 8s to get 1000

888+ 88+ 8 +8+8