Equations Review

Writing Equations

100

I have 20 chickens. My fellow farmer gave me some more from the market. Now I have 25 chickens. Write the expression for c chickens.

20+c=25

200

I have 27 buttons in my collection. I gave 10 buttons to my friend, and another friend gave me 2 buttons to add. Write the expression for r buttons that I have now.

27-10+2+r

300

I had 100 pieces of Halloween candy, and I game some to my friends. I had 5 friends. Write the equation for y candies each friends got.

100/5=y

400

I have 3 cats, and each cat had 4 kittens, plus one cat had one more. Write the expression for how many t cats I have now.

3x4+1=t

(The x is multiplication)

500

I got 400 beads, and they came in ten packages. Write the Equation for b beads.

b=400/10

Solving Equations

100

j-2=7

^{From IXL}

j=9

200

y+1=20

^{Found From IXL}

y=19

300

6=3p

^{From IXL}

p=2

400

p/4=3

^{Found From IXL}

p=12

500

3.5=m/3

^{Found From IXL}

m=10.5

Solving Multi-Step Equations

100

2(h-2)=6

^{From IXL}

h=5

200

9=3(t+2)

^{Found from IXL}

t=1

300

1=d-6/2

^{Found From IXL}

d=8

400

y+5/2=3

^{From IXL}

y=1

500

4/c=2

*You must use the mathematical way, not just think your way through it.*

^{Found From IXL}

c=2

Equations and Percents

100

25% of 16 is what?

4

200

20% of x is 100

Solve for x

x=100

300

x is 40% of 25

x=10

400

40% of a number is 2/25

solve for "a number"

x=1/5

500

50% of chocolates eaten are liked by the person who ate it. If there are 36 million people, how many people like the chocolates they ate?

18 million people like the chocolates they ate

Surprise :)

100

I have 1 pizza (eight slices) to share with my friends. Each friend gets 2 slices of pizza. Write the expression for how many f friends came over.

8/f=2

200

7=w/3

w=21

300

1=8-h

^{Found From IXL}

h=7

400

6a=24

a=4

500

75% of the girls at school ride to school in a car. If 2700 girls ride in cars, how many girls are there?

3600 girls