3rd Grade Math

Front

What is the perimeter of a shape?

Back

The perimeter is the total distance around the outside of a shape.

Front

How do you find the area of a rectangle?

Back

Multiply the length by the width (Area = Length x Width).

Front

What is a multiplication sentence?

Back

A multiplication sentence shows repeated addition, like 4 + 4 + 4 = 12 can be written as 3 x 4 = 12.

Front

If a rectangle has a length of 5 cm and a width of 4 cm, what is its area?

Back

20 cm² (Area = Length x Width = 5 x 4).

Front

What does it mean to divide?

Back

To divide means to split a number into equal parts.

Front

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

Back

Perimeter = 2 x (Length + Width).

Front

If you have 24 apples and want to put them in bags of 6, how many bags do you need?

Back

4 bags (24 ÷ 6 = 4).

Front

What is the difference between area and perimeter?

Back

Area measures the space inside a shape, while perimeter measures the distance around it.

Front

What is a fraction?

Back

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

Front

How do you add fractions with the same denominator?

Back

Add the numerators and keep the same denominator (a/b + c/b = (a+c)/b).