3rd grade math review -NV

Front

What is the area of a rectangle?

Back

The area of a rectangle is found by multiplying its length by its width. For example, if a rectangle is 4 yards long and 7 yards wide, its area is 4 x 7 = 28 square yards.

Front

How do you round a number to the nearest hundred?

Back

To round a number to the nearest hundred, look at the tens digit. If it is 5 or more, round up. If it is 4 or less, round down. For example, 752 rounds to 800.

Front

If Sharon left the movies at 1:00 pm and was there for 2 hours, what time did she arrive?

Back

Sharon arrived at 11:00 am. You subtract 2 hours from 1:00 pm.

Front

What is 4 x 7?

Back

4 x 7 = 28.

Front

What multiplication fact does this array represent: 3 rows of 6?

Back

The array represents the multiplication fact 3 x 6 = 18.

Front

What is the perimeter of a rectangle?

Back

The perimeter of a rectangle is the total distance around it, calculated by adding the lengths of all sides. For a rectangle with length 5 and width 3, the perimeter is 2(5 + 3) = 16.

Front

What is a fraction?

Back

A fraction represents a part of a whole. It consists of a numerator (top number) and a denominator (bottom number). For example, 1/2 means one part out of two equal parts.

Front

How do you add fractions with the same denominator?

Back

To add fractions with the same denominator, add the numerators and keep the denominator the same. For example, 1/4 + 2/4 = (1 + 2)/4 = 3/4.

Front

What is the value of the digit 5 in the number 5,432?

Back

In the number 5,432, the digit 5 is in the thousands place, so its value is 5,000.

Front

What is a number line?

Back

A number line is a straight line with numbers placed at equal intervals. It helps to visualize numbers and their relationships.