Pre-Algebra Extra Credit

Exponents

100

4²

16

200

10³

1000

300

6³

216

400

20²

400

500

12⁴

20736

Algebretic Equations

100

2n+3n=25

n=5

200

3n-15=5n+3

n=-9

300

9n+6n+10n=50

n=2

400

100-5n=500

n=-80

500

15n+20=5n-10

n=-3

Distribution

100

4(n-15)

4n-60

200

7(-3n+9)

-21n+63

300

10(2n-20+3)

20n-200+30

400

6(12n-15)

_72n-90

500

-20(-20n+30)

400n-600

Word Problems

100

John has $50 to spend. He wants to buy a $23 Tee Shirt and multiple football card packs. How many packs can he get if they are $5 each? How much money will he have left?

5 packs with $2 left

200

Caleb has 350 marbles and wants to split them evenly between him and 4 friends. How many marbles does each person get.

They each get 70 marbles

300

James has 56 Lego sets. He has 7 days to build all of them. How many sets does he have to build a day.

He has to build 8 sets a day.

400

Jeffy wants a $17 dollar soda and as many $3 candies as he can get for his movie. He has 30 dollars to spend. How many boxes of candy can he get?

He can buy 4 boxes.

500

Josh has 0 paintings. He wants to have 70 in a week. How many does he have to paint a day.

He has to paint 10 a day.

Fractions

100

3/8+2/4

7/8

200

80/100-3/20

65

300

6/15+7/30

19/30

400

6/10-3/20+89/200

179/200

500

5/60-8/10+4/30

-35/60