Operations with Decimals

Front

What is the result of multiplying $10.50 by 4?

Back

$42.00

Front

When multiplying decimals, do we need to line up the decimal points?

Back

No, the decimal points don't need to line up.

Front

When adding and subtracting decimals, what should we do with the decimal points?

Back

We line up the decimal point.

Front

What do we do when dividing a number by a decimal?

Back

We make the divisor into a whole number by moving the decimal point to the RIGHT and the decimal to the RIGHT on the inner number.

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

How do you convert a fraction to a decimal?

Back

Divide the numerator by the denominator.

Front

What is the place value of the digit 5 in the number 3.45?

Back

The place value of 5 is in the hundredths place.

Front

What is the sum of 2.5 and 3.75?

Back

The sum is 6.25.

Front

What is the difference between 5.5 and 2.3?

Back

The difference is 3.2.

Front

How do you round 4.678 to the nearest hundredth?

Back

4.68