Kai's Math Project

Add and Subtract Rational Numbers

100

3/10 - 2/5

-1/10

200

9/10 - 7/10

2/10

300

4/5 + 1/5

1

400

1/10 - 1/2

-2/5

500

-1/10 + -2/5

-5/10

Solve a system of equations using substitution

100

x = 6

3x + 4y = 6

(6, -3)

200

y = 9

10x + 10y = -10

(-10,9)

300

y + 8

-9x + 9y + 18

(6,8)

400

x=-8

10x-9y=-8

(-8,-8)

500

x = –2

–7x + 10y = –16

(-2,-3)

Find the number of solutions to a linear equation

100

6m = 7 + 5m

one solution

200

-4 = b + -3b

one solution

300

w = -5 + w

no solution

400

0 = -5s + 5s

Infinitely many solutions

500

-7 + 8p = 8p

no solution

Solve a quadratic equation using square roots

100

s^{2 = 16}

s = 4 or s = -4

200

h² = 64

h = 8 or h = -8

300

d² = 25

d = 5 or d = -5

400

k² = 121

k = 11 or k = -11

500

z² = 4

z = 2 or z= -2

Add, Subtract, Multiply, and Divide Integers

100

2 - (-5)

7

200

-8/1

-8

300

-10 - (-1) 

-9

400

-5(10)

-50

500

-11/(-99)

9