multiplication decimals

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 3 x 4 means adding 3 four times (3 + 3 + 3 + 3 = 12).

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 a decimal by a whole number?

Back

To multiply a decimal by a whole number, multiply as if there were no decimal, then place the decimal point in the product based on the number of decimal places in the original decimal.

Tags

CCSS.5.NBT.B.7

Front

What is the tenths place in a decimal?

Back

The tenths place is the first digit to the right of the decimal point. For example, in 2.5, the digit 5 is in the tenths place.

Tags

CCSS.5.NBT.A.3A

Front

What is the product of 0.2 and 0.4?

Back

0.2 x 0.4 = 0.08.

Tags

CCSS.6.NS.B.3

Front

What is the product of 2.5 and 6.7?

Back

2.5 x 6.7 = 16.75.

Tags

CCSS.6.NS.B.3

Front

How do you find the product of two decimals?

Back

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.5.NBT.B.7

Front

What is the value of 10 x 8?

Back

10 x 8 = 80.

Tags

CCSS.3.OA.C.7

Front

What is the product of 45.1 and 7?

Back

45.1 x 7 = 315.7.

Tags

CCSS.5.NBT.B.7

Front

What does it mean to round a decimal?

Back

Rounding a decimal means adjusting its value to make it simpler while keeping it close to the original value. For example, rounding 2.7 to the nearest whole number gives 3.

Tags

CCSS.5.NBT.A.4