Decimal Operations

Front

What is the result of 21.728 - 13.028?

Back

8.7, 8.700, 8.70

Front

What is the result of 16.21 - 9.3?

Back

6.91

Front

If a hoverboard costs $168 and you save $8.50 each week, how many whole weeks will you need to save?

Back

20 weeks

Front

What is the length of an edge of a Rubik's cube if the perimeter of each face is 22.2 centimeters?

Back

5.55 cm, 5.55 centimeters

Front

What is the result of 46.2 ÷ 3?

Back

15.4

Front

What is 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 the numbers as you would with whole numbers.

Front

How do you subtract decimals?

Back

To subtract decimals, align the decimal points and subtract as you would with whole numbers.

Front

What is the process of multiplying decimals?

Back

Multiply the numbers as 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, and move the decimal point in the dividend the same number of places.