3rd Grade Math Review

Front

What is the equation for multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 5 x 3 means adding 5 three times: 5 + 5 + 5 = 15.

Front

What is perimeter?

Back

Perimeter is the total distance around the outside of a shape. To find the perimeter of a rectangle, add the lengths of all four sides.

Front

What is division?

Back

Division is a mathematical operation where a number is split into equal parts. For example, 8 ÷ 2 means splitting 8 into 2 equal groups, which equals 4.

Front

What does 'to the nearest ten' mean?

Back

Rounding a number to the nearest ten means finding the closest multiple of ten. For example, 84 rounded to the nearest ten is 80.

Front

What is a true equation?

Back

A true equation is a mathematical statement that shows two expressions are equal. For example, 5 x 6 = 30 is a true equation.

Front

How do you find the missing length in a perimeter problem?

Back

To find the missing length, subtract the sum of the known lengths from the total perimeter.

Front

What is the value of 2 x 7?

Back

2 x 7 = 14.

Front

If Wyatt earns $20 for each lawn he mows, how much does he earn for 4 lawns?

Back

Wyatt earns 4 x 20 = $80 for mowing 4 lawns.

Front

How do you calculate how much money is left after spending?

Back

To find out how much money is left, subtract the amount spent from the total amount earned.

Front

What is the total number of marbles Rachel has if she has 4 bags with 8 marbles each?

Back

Rachel has 4 x 8 = 32 marbles in total.