MIDDLE SCHOOL MATH OLYMPICS

Fractions to Decimals

100

What is the decimal for 5/7 to the nearest hundredths?

0.71

200

What is the decimal for 3/11 to the nearest hundredths?

0.27

300

What is the decimal for 1 2/3 to the nearest hundredths?

1.67

400

What is the decimal for 8 4/5 to the nearest hundredths?

8.8

500

What is the decimal for 1 13/20 to the nearest hundredths?

1.65

Fractions, Decimals, Percents

100

X = X = 12%

x = 3/25 and 0.12%

200

12/25 = X = X

0.48 and 48%

300

x = 0.82 = X

x = 41/50 and 82%

400

X = 0.13 = X

X = 13/100 and 13%

500

X = X = 80%

x = 4/5 and 0.80

Adding and Subtracting Integers

100

-5+3

-2

200

9 - -3

12

300

-19 - 2

-21

400

8 + -16 + 8

0

500

-4 + 6 + -9

-7

Multiplying and Dividing Integers 2

100

6 × -2

-12

200

-161 ÷ -7

23

300

142 ÷ -2

-71

400

-5 × 8

-40

500

-32 ÷ 3

-10 2/3 or -10.33 or -32/4

FIND THE X!!!

100

8 a / 4 =   6

a = 3

200

2p – 6   =   8 + 5(p + 9)

p = -19 2/3 or -59/3

300

3v /3 –  3v  =  –5

v = 2 1/2 or 5/2

400

–3(–4 – b)   =   5  –  8b / 4

b = -1 2/5 or -7/5

500

–9 · 7   =   8(y – 6.6)

y = -1.275