Decimal Operations

Front

What is the result of 16.21 - 9?

Back

7.21

Front

What is the result of 11.2 - 0.374?

Back

10.826

Front

What is 0.015 ÷ 0.0003?

Back

50, 50.0

Front

What is 46.2 ÷ 3?

Back

15.4

Front

If a hoverboard costs $168 and you save $8.50 each week, how many weeks will it take to save enough money?

Back

20 weeks

Front

What is the definition of a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten.

Front

What does it mean to add decimals?

Back

Adding decimals involves aligning the decimal points and adding each column, carrying over if necessary.

Front

How do you subtract decimals?

Back

To subtract decimals, align the decimal points and subtract each column, borrowing if needed.

Front

What is the process of multiplying decimals?

Back

Multiply as if they are whole numbers, then count the total number of decimal places in both factors and place the decimal in the product.

Front

How do you divide decimals?

Back

To divide decimals, move the decimal point in the divisor to make it a whole number, then move the decimal in the dividend the same number of places.