3rd Grade Math Review

Front

What is area?

Back

Area is the amount of space inside a shape, measured in square units.

Front

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

Back

Area = length × width.

Front

What is perimeter?

Back

Perimeter is the distance around a shape, calculated by adding the lengths of all sides.

Front

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

Back

Perimeter = 2 × (length + width).

Front

What does 'sq. cm' mean?

Back

'Sq. cm' stands for square centimeters, a unit of area.

Front

What does 'in.' mean?

Back

'In.' stands for inches, a unit of length.

Front

How do you round a number to the nearest ten?

Back

Look at the digit in the ones place. If it's 5 or more, round up. If it's less than 5, round down.

Front

What is 24 sq. cm?

Back

24 square centimeters is the area of a shape that covers 24 squares each measuring 1 cm by 1 cm.

Front

What is the area of a rectangle with a length of 6 cm and a width of 4 cm?

Back

Area = 6 cm × 4 cm = 24 sq. cm.

Front

What is the perimeter of a rectangle with a length of 5 in and a width of 3 in?

Back

Perimeter = 2 × (5 in + 3 in) = 16 in.