enVision 2.0 Grade 3 Topics 1, 2, 3 Review

Front

What is the Commutative Property?

Back

The Commutative Property states that changing the order of numbers in addition or multiplication does not change the result. For example, 10 x 8 = 8 x 10.

Front

What is repeated addition?

Back

Repeated addition is adding the same number multiple times. For example, 5 + 5 + 5 + 5 + 5 is the same as 5 x 5.

Front

How do you divide 16 crayons between 2 people?

Back

You give each person 8 crayons. 16 crayons ÷ 2 people = 8 crayons per person.

Front

What does the Distributive Property mean?

Back

The Distributive Property states that a number multiplied by a sum is the same as multiplying each addend separately and then adding the products. For example, 5(4 + 1) = (5 x 4) + (5 x 1).

Front

What is the Associative Property?

Back

The Associative Property states that when adding or multiplying, the way numbers are grouped does not change the result. For example, (2 + 3) + 4 = 2 + (3 + 4).

Front

What is the Identity Property?

Back

The Identity Property states that adding 0 to a number or multiplying a number by 1 does not change the number. For example, 5 + 0 = 5 and 5 x 1 = 5.

Front

What is an array in math?

Back

An array is a way to organize objects in rows and columns. For example, a rectangular array of 2 rows and 4 columns has 8 objects.

Front

How can you express 5 + 5 + 5 + 5 + 5 using multiplication?

Back

You can express it as 5 x 5.

Front

What is the result of 5 x 4 + 5 x 1?

Back

The result is 25, because 5 x 4 = 20 and 5 x 1 = 5, so 20 + 5 = 25.

Front

What is the difference between addition and multiplication?

Back

Addition combines numbers to find a total, while multiplication is repeated addition of the same number.