OST Math Review #2

Front

What is the product of 2/3 and 3/5?

Back

The product is 2/3 * 3/5 = 6/15 = 2/5, which is less than both 2/3 and 3/5.

Front

What shape is NOT a rhombus?

Back

A rhombus is a quadrilateral with all sides equal. A rectangle has opposite sides equal and right angles, a trapezoid has at least one pair of parallel sides, and a parallelogram has opposite sides equal.

Front

If Joel uses 1/4 gallon and 3/8 gallon of paint, how much paint does he have left from 1 gallon?

Back

Total used = 1/4 + 3/8 = 2/8 + 3/8 = 5/8. Paint left = 1 - 5/8 = 3/8 gallon.

Front

What is the total cost of water bottles for 138 campers at $0.69 each?

Back

Total cost = 138 * 0.69 = $95.22.

Front

How do you compare the two different values of the digit 4 in the number 324.45?

Back

The first 4 is in the tenths place (4/10) and the second 4 is in the hundredths place (4/100). Therefore, 4/10 > 4/100.

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as a/b, where 'a' is the numerator and 'b' is the denominator.

Front

What is the definition of a parallelogram?

Back

A parallelogram is a four-sided figure (quadrilateral) with opposite sides that are parallel and equal in length.

Front

What does it mean to find the least common multiple (LCM)?

Back

The least common multiple of two or more numbers is the smallest number that is a multiple of each of the numbers.

Front

What is the formula for finding the area of a rectangle?

Back

Area = length × width.

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 2 1/2.