Decimals Pre-Assessment Richer

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a decimal point. For example, 0.5 is a decimal that represents 5/10.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, carrying over if necessary.

Front

What is the value of the digit in the tenths place in the number 3.76?

Back

The value of the digit in the tenths place in 3.76 is 7, which represents 7/10 or 0.7.

Front

How do you round a number to the hundredths place?

Back

To round to the hundredths place, look at the digit in the thousandths place. If it is 5 or greater, round up the hundredths place by one. If it is less than 5, keep the hundredths place the same.

Front

What is the result of 37.089 + 143.06?

Back

The result is 180.149.

Front

What is the result of 12.7 + 5.63?

Back

The result is 18.33.

Front

What is the result of 48.92 - 6.5?

Back

The result is 42.42.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to a nearby specified value, making it simpler while keeping it close to the original value.

Front

What is the place value of 5 in the number 45.678?

Back

The place value of 5 in 45.678 is 5 tenths or 0.5.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, borrowing if necessary.