Early Math Enrichment

Algebra

100

5n=50

n=10

200

2n+8=36

n=14

300

5n-7=23

n=6

400

2n-8=3n+3

n=-11

500

4n-5=2n+17

n=11

Fractions

100

3/4 + 2/8

1

200

5/6 + 3/8

29/24

300

10/12 - 4/6

1/6

400

3/2 x 2/9

1/3

500

7/8 / 1/2

7/4

Decimals

100

6.77 X 1,000

6,770.00

200

24.4 X 10

244.0

300

0.7 X 0.8

.56

400

1.0 X 0.05

0.050

500

0.2 X 0.10

0.020

Fractions to Decimals

100

.83 converted to a fraction

83/100

200

.1

1/10

300

9/100

0.09

400

4/20

.2

500

18/25

.72

Word Problems

100

Bill weighs 42 pounds more than Steve. Together they weigh 370 pounds. How much does Steve weigh?

164 pounds

200

Eight times a number is the same as that number plus 84. What is the number?

12

300

A model of an Egyptian pyramid has a scale of 1.2" : 38 feet. If the height of the model is 3", what is the height of the real pyramid?

95 feet

400

I have 19 coins that are worth a total of $1.10. If they consist of only dimes and nickels, then how many nickels do I have?

16 nickels

500

Half the weight of a brick plus 20 pounds is equal to 1/3 the weight of the brick plus 30 pounds. How much does the brick weigh?

60 pounds