Decimal Operations

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a dot (decimal point) separating the whole number from the fractional part.

Front

How do you add decimals?

Back

To add decimals, line up the decimal points and add as you would with whole numbers, placing the decimal point in the answer directly below the other decimal points.

Front

How do you subtract decimals?

Back

To subtract decimals, line up the decimal points and subtract as you would with whole numbers, placing the decimal point in the answer directly below the other decimal points.

Front

What is the first step when adding and subtracting decimals?

Back

Line up the decimals.

Front

What is 94 - 4.8?

Back

89.2

Front

What is 7.05 - 4.6?

Back

2.45

Front

What is 14.56 ÷ 1.3?

Back

11.2

Front

What is 2.39 x 4.37?

Back

10.4443

Front

What does it mean to 'line up the decimals'?

Back

It means to align the decimal points of the numbers being added or subtracted to ensure accurate calculations.

Front

What is the result of 10.5 + 2.3?

Back

12.8