Estimation and Multiplication Check-Point Flashcard

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the process of adding a number to itself a certain number of times. For example, 3 x 4 means adding 3 four times (3 + 3 + 3 + 3).

Front

What is the product of 800 x 500?

Back

400,000

Front

What is the product of 3 x 483?

Back

1,449

Front

How do you estimate the product of two numbers?

Back

To estimate the product, round each number to the nearest ten or hundred and then multiply the rounded numbers.

Front

What is the product of 138 and 57?

Back

7,866

Front

What is the significance of the commutative property in multiplication?

Back

The commutative property states that changing the order of the numbers in a multiplication problem does not change the product. For example, 4 x 5 = 5 x 4.

Front

How much does Dojo Karate school make in a month with 57 students at $138 each?

Back

$7,866

Front

What is the associative property of multiplication?

Back

The associative property states that when multiplying three or more numbers, the way in which the numbers are grouped does not change the product. For example, (2 x 3) x 4 = 2 x (3 x 4).

Front

What is a factor in multiplication?

Back

A factor is a number that is multiplied by another number to get a product. For example, in 4 x 5, both 4 and 5 are factors.

Front

What is the identity property of multiplication?

Back

The identity property states that any number multiplied by 1 remains unchanged. For example, 7 x 1 = 7.