Chapter 5 Math Extra Credit

Front

What is the product of 13 and 42?

Back

546

Front

Estimate the product of 48 and 89. Is it greater or less than the actual product?

Back

50 x 90 = 4,500; greater than

Front

Estimate the product of 87 and 11.

Back

900 minutes

Front

Back

Front

If a dog eats 45 cups of food each month, how many cups will it eat in 1 year?

Back

540 cups of food

Front

What is the definition of multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of the same number.

Front

What is an estimate in mathematics?

Back

An estimate is an approximate calculation or judgment of a value.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest specified value, often to make calculations easier.

Front

What is the associative property of multiplication?

Back

The associative property states that the way in which numbers are grouped in multiplication does not change the product.

Front

What is the commutative property of multiplication?

Back

The commutative property states that changing the order of the numbers in multiplication does not change the product.