Decimal Operations

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a decimal point. For example, 0.5 is a decimal that represents 5/10.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

Front

What is the result of 5.86 - 0.2?

Back

5.66

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

Front

What is the result of 123.45 + 56.8?

Back

180.25

Front

What is multiplication of decimals?

Back

Multiplication of decimals involves multiplying the numbers as if they were whole numbers, then placing the decimal point in the product based on the total number of decimal places in the factors.

Front

What is the result of 2.3 x 6?

Back

13.8

Front

What operation would you use to divide 35.5 pounds of candy among 17 students?

Back

Division

Front

What is the result of 2.37 - 1.88?

Back

0.49

Front

How do you multiply decimals?

Back

To multiply decimals, 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.