Multiplication of Decimals 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).

Tags

CCSS.3.OA.A.1

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It uses a decimal point to separate the whole number part from the fractional part. For example, 0.5 is a decimal.

Front

How do you multiply decimals?

Back

To multiply decimals, first multiply the numbers as if they were whole numbers. Then, count the total number of decimal places in both numbers and place the decimal point in the product accordingly.

Tags

CCSS.6.NS.B.3

Front

What is the product of 0.6 and 0.91?

Back

0.546

Tags

CCSS.6.NS.B.3

Front

If Mrs. Vecchio bought 12 boxes of candy canes at $0.98 each, how much did she spend?

Back

$11.76

Tags

CCSS.7.EE.B.3

Front

What is 63.9 multiplied by 7?

Back

447.3

Tags

CCSS.6.NS.B.3

Front

What is the best estimate for 80.1 x 2.8?

Back

240

Tags

CCSS.5.NBT.B.7

Front

What is the best estimate for the total length of 3 pieces of wood, each 4.25 feet long?

Back

12 feet

Tags

CCSS.5.NBT.B.7

Front

What is the importance of estimating in multiplication?

Back

Estimating helps to quickly find an approximate answer, which can be useful for checking the reasonableness of a calculated answer.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to a nearby, more convenient value, often to make calculations easier.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3