Decimal Place Value and Adding/Subtracting Decimals

When adding or subtracting with decimals, you -

• Move decimals out

• Shift decimals 3 places over

• Line up the decimals

• Ignore decimals

The place value right after the decimal is called the __________.

• tens

• tenths

• thousands

• hundrenths

Three place values BEHIND the decimal is the _______________.

• thousands

• millionths

• ones

• thousandths

The place value right before the decimal is called the _______.

• ones

• tenths

• tens

• hundreds

The second step for adding or subtracting decimals is _________________.

• Stick a Zero in any empty space.

• Line them Up

• Borrowing

• Regroup

When Adding and Subtracting decimals

• We don't line up the Decimal point

• We line up the decimal point

• We get rid of the decimal points.

• We skip the problem

-12.4 + 9.2 + 1 

Mathematical Equivalence

ON

What is the last step when you are adding or subtracting decimals?

• Line them up

• Drag the point

• Move the decimal point to the end.

Four place values to the LEFT of the decimal is the _______________.

• millions

• hundreds

• thousands

• hundred thousands

Find the sum. 9 + 12.36 = ?

• 21.36

• 12.45