Addition and Subtraction of Decimals with 4-5 Digits

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

145.7 + 56.78 

Mathematical Equivalence

ON

Tags

CCSS.6.NS.B.3

Find the sum of 148.093 + 5.675

• 153.768

• 153.668

• 152.668

• 153.786

Tags

CCSS.5.NBT.B.7

62.573 + 4.328

Mathematical Equivalence

OFF

Tags

CCSS.6.NS.B.3

In 2018 the tree grew 10.27 inches. In 2019, it grew another 8.4 inches.

How many inches did the tree grow over the two years?

• 11.11 inches

• 18.67 inches

• 18.31 inches

• 94.27 inches

Tags

CCSS.6.NS.B.3

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

What is the second step in adding or subtracting decimals?

• Set up the problem vertically and line up the decimals

• Insert placeholder zeros if needed

• Add or subtract the numbers

• Bring the decimals straight down

Tags

CCSS.5.NBT.B.7

How do you solve problems that involve adding decimals?

• if the decimal is in the house, raise it to the roof

• Bring UP the decimal point

• Line up the decimals

• Completely ignore the decimal

Tags

CCSS.5.NBT.B.7