Operation With Decimals

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It represents a part of a whole number, using a dot (.) to separate the whole number from the fractional part.

Front

How do you add decimals?

Back

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

Front

What is the result of 67.2 divided by 1.2?

Back

56

Front

What is the result of 123.45 + 56.8?

Back

180.25

Front

What operation would you use to find out how much change Mariah gets back from $100 after spending $68.77?

Back

Subtraction

Front

How do you subtract decimals?

Back

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

Front

What is the result of 0.55 - 0.12?

Back

0.43

Front

What is the result of 2.37 - 1.88?

Back

0.49

Front

What is multiplication in relation to decimals?

Back

Multiplication is combining equal groups. When multiplying decimals, multiply as if they were whole numbers, then count the total number of decimal places in both factors to place the decimal in the product.

Front

What is division in relation to decimals?

Back

Division is splitting a number into equal parts. When dividing decimals, you can convert the divisor to a whole number by moving the decimal point and adjusting the dividend accordingly.