UIL Mathematics 6-8

Front

If a yardstick casts a shadow 10 feet long, how tall is a flagpole which casts a shadow 225 feet long at the same time?

Back

67 1/2 ft

Front

What is the difference between the largest and smallest three-digit numbers formed by rearranging the digits 5, 1, and 9?

Back

792

Front

If the number 150 is increased by 40% and then decreased by 40%, what is the final result?

Back

126

Front

If Mary is 8 years old, how old is Rick if Rick is twice as old as Zach, and Zach is three times as old as Mary was three years ago?

Back

30 yrs.

Front

How many prime numbers exist between 0 and 30?

Back

10

Front

What is the formula to calculate the area of a rectangle?

Back

Area = length × width

Front

Define a prime number.

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is the greatest common factor (GCF) of 12 and 16?

Back

4

Front

What is the least common multiple (LCM) of 3 and 5?

Back

15

Front

What is the formula for calculating the perimeter of a rectangle?

Back

Perimeter = 2(length + width)