operations with fractions
What is 8/10 - 3/10 (in simplest terms!)
1/2
Name the 6th multiple of 4.
24
The dimensions of a rectangle are 9 by 7 inches. What is its area?
63 square inches
what is 1/3 +1/4?
7/12
What are all the factors of 36?
1,2,3,4,6,9,12,18,36
The sides of a parallelogram are 7 cm and 20 cm. What is its perimeter?
54 cm
what is 4/5 * 7/8?
28/40 = 14/20 = 7/10
What is the greatest common factor of 39 and 65?
13
A right triangle has the side lengths 6,8,10 feet. What is the area of the triangle?
24 square feet
what is 4 and 2/3 minus 2 and 9/10? (improper fraction or mixed number acceptable)
1 and 23/30 = 53/30
Name three numbers with an odd number of factors
1,3,9, etc (all perfect squares)
A circle has a radius of four feet. What is its circumference (use 3 for pi)?
about 24 feet
what is 9 and 1/2 divided by 4/7? (improper fraction or mixed number acceptable)
133/8 = 16 and 5/8
Define what an abundant number is.
A number whose factors, excluding the number itself, exceed that number when added together. Example: 12 because 1+2+3+4+6 = 16
What is the area of a circle with a circumference of 12.56 meters
12.56 square meters