Place Value and Powers of Ten

Front

What is place value?

Back

Place value is the value of a digit based on its position in a number. For example, in the number 345, the 3 is in the hundreds place, so its value is 300.

Front

What does the term 'powers of ten' mean?

Back

Powers of ten refer to the number 10 raised to an exponent. For example, 10^2 means 10 multiplied by itself, which equals 100.

Front

What is the value of the digit 5 in the number 0.555?

Back

The value of the 5 in the middle is 0.05, while the value of the 5 on the right is 0.005.

Front

How do you convert a number in scientific notation to standard form?

Back

To convert a number in scientific notation to standard form, multiply the number by 10 raised to the power indicated. For example, 6.21 x 10^2 = 621.

Front

Back

621

Front

Back

No, the equation is not true. The decimal point moved too many places to the right.

Front

Back

6.21

Front

What happens to a decimal point when you multiply by 10?

Back

When you multiply a number by 10, the decimal point moves one place to the right.

Front

What happens to a decimal point when you divide by 10?

Back

When you divide a number by 10, the decimal point moves one place to the left.

Front

What is the value of the digit 4 in the number 4,250?

Back

The value of the digit 4 is 4,000 because it is in the thousands place.