Multiplication & Division Unknown #s & Fact Families

Front

What is a fact family?

Back

A fact family is a group of related math facts that use the same numbers. For example, the numbers 3, 4, and 12 can form the fact family: 3 x 4 = 12, 4 x 3 = 12, 12 ÷ 4 = 3, and 12 ÷ 3 = 4.

Front

What are factors in multiplication?

Back

Factors are the numbers that are multiplied together to get a product. For example, in the equation 6 x 8 = 48, 6 and 8 are the factors.

Front

What is the product in multiplication?

Back

The product is the result of multiplying two or more numbers together. For example, in 6 x 8 = 48, 48 is the product.

Front

What is the division equation for 27 ÷ ___ = 9?

Back

The unknown number is 3, because 27 ÷ 3 = 9.

Front

What is the multiplication equation for 3 x __ = 15?

Back

The unknown number is 5, because 3 x 5 = 15.

Front

How do you find an unknown in a division problem?

Back

To find an unknown in a division problem, you can multiply the quotient by the divisor. For example, if 27 ÷ ___ = 9, then 9 x 3 = 27.

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. This means that if you know one operation, you can find the other. For example, if 6 x 8 = 48, then 48 ÷ 6 = 8.

Front

What is the equation for the fact family of 7 x 5 = 35?

Back

The fact family includes: 7 x 5 = 35, 5 x 7 = 35, 35 ÷ 7 = 5, and 35 ÷ 5 = 7.

Front

What is the missing number in the equation 6 x 8 = ___?

Back

The missing number is 48, because 6 x 8 = 48.

Front

What is the equation for the fact family of 18, 6, and 3?

Back

The fact family includes: 18 ÷ 6 = 3, 6 x 3 = 18, 3 x 6 = 18, and 18 ÷ 3 = 6.