Review Decimal Place Value, Rounding, Add and Subtract

Front

What is decimal place value?

Back

Decimal place value refers to the value of a digit based on its position in a decimal number. For example, in the number 3.72, the digit 7 is in the tenths place and has a value of 0.7.

Front

How do you round a number to the nearest tenth?

Back

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

Front

What is the TENS place in the number 263?

Back

The TENS place in the number 263 is the digit 6.

Front

How do you find the difference between two decimal numbers?

Back

To find the difference between two decimal numbers, align the numbers by the decimal point and subtract the smaller number from the larger number.

Front

Which is greater: 0.062 or 0.62?

Back

0.62 is greater than 0.062.

Front

What is the standard form of the number represented by 3x100 + 2x10 + 4x1 + 3(1/10) + 2(1/100)?

Back

The standard form is 324.32.

Front

What does rounding mean in mathematics?

Back

Rounding means adjusting the value of a number to make it simpler while keeping it close to the original value.

Front

What is the value of the digit 4 in the number 4.56?

Back

In the number 4.56, the digit 4 is in the units place, so its value is 4.

Front

How do you add decimal numbers?

Back

To add decimal numbers, align the numbers by the decimal point and add each column starting from the right.

Front

What is the process of subtracting decimals?

Back

To subtract decimals, align the numbers by the decimal point, subtract each column starting from the right, and borrow if necessary.