3rd grade SC Math Review

Front

Kara has 3 shelves to put 18 books on. She puts an equal number of books on each shelf. Then, Kara buys 5 new books. How many books does Kara have on the first shelf?

Back

11 books

Front

Ms. Kren is reading a book with 524 pages. How many pages are in Ms. Kren’s book rounded to the nearest ten?

Back

520 pages

Front

A rectangular rug is 8 feet wide. The perimeter of the rug is 26 feet. How long is the other side of the rug?

Back

5 feet

Front

Ricky draws a shape with four sides and exactly two right angles. Each side of the shape is a different length. What is the best word to describe Ricky’s shape?

Back

quadrilateral

Front

Jerry is putting a puzzle together. The number of pieces he has left, rounded to the nearest hundred, is 400 pieces. Which could be the actual number of pieces Jerry has left?

Back

350 pieces

Front

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

Back

Perimeter = 2(length + width)

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting a number to make it simpler but keeping its value close to what it was.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is a quadrilateral?

Back

A quadrilateral is a polygon with four sides.

Front

How do you find the area of a rectangle?

Back

Area = length × width