Adding and subtracting decimal numbers

When numbers are taken away.

• Addition

• Subtraction

• Multiplication

• Division

Tags

CCSS.5.NBT.B.7

What is very important when you add decimals?

• just add them
• make sure the addends have the same place values
• line up the decimal point

Tags

CCSS.5.NBT.B.7

What is the first step to add the decimals. 3.5 + 5.44?

• ADD the numbers

• FILL extra zeros so the numbers have the same length.

• PUT the decimal point in the answer in line with other decimal points.

• LINE UP the decimal points vertically

Tags

CCSS.5.NBT.B.7

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.

Tags

CCSS.5.NBT.B.7

The answer to a subtraction problem is ______.

Tags

CCSS.5.NBT.B.7

What is the rule for adding decimals?

• Add first
• Line up the decimals first, then fill in with zeros.
• Move the decimal to the right the total amount of numbers after the decimal.
• Subtract

Tags

CCSS.5.NBT.B.7

Rework the decimal subtraction below to determine if there is an error.

10.34

_- 3.2

10.02

• The work is correct. There is no error.

• The student did not regroup correctly.

• The student did not line up the decimals before subtracting.

• The student left out the decimal in the answer.

Tags

CCSS.5.NBT.B.7

What is the first step to adding and subtracting decimals?

• Line up the decimals.

• Add zeros.

• Start adding.

• Start subtracting.

Tags

CCSS.5.NBT.B.7

How much money is shown?

• $3.75

• $4.00

• $3.97

• $4.02

Tags

CCSS.5.NBT.B.7

How much money is shown?

• $3.20

• $4.20

• $3.65

• $4.00

Tags

CCSS.5.NBT.B.7