Decimal Subtraction

Decimal Subtraction

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4.4A LO: Students will subtract decimals and whole numbers.

Given 2 questions, SWBAT subtract decimals and whole numbers with 100% accuracy.

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Open Ended

How will you use subtraction as an adult?

Open Ended

in 3 to 5 words, tell me one thing you know about subtracting decimals.

Multiple Select

• Done!

• I'm ready :)

Multiple Choice

Do all numbers have a decimal even if you can't see it?

• Yes

• No

• I don't know

Even if you can't see it, the decimal is there, we just don't put it on all numbers.

For example $3 = $3.00

3 is in the ones place but if we put the decimal and fill in the zeros, it makes it easier to add and subtract because the numbers stay lined up.

The value doesn't change because 3 is in the Ones place.

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I DO

9 - .81

I DO

9 - .81

Fill in the Blanks

9 - .81

WE DO!

52 .1 - 5.21

WE DO ! 52 .1 - 5.21

Fill in the Blanks

WE DO!

52 .1 - 5.21

DON'T FORGET YOUR DECIMAL

Fill in the Blanks

YOU DO!

33 - 11.01

YOU DO!

33 - 11.01

Multiple Choice

DOL Question 1

Solve the number sentence below.

26.9 - 1.59

• 110

• 11

• 25.31

• 28.49

• 428.0

Multiple Choice

DOL Question 2 - Solve the number sentence below.

102 - 12.15

• 114.15

• 89.85

• 1,113

• 89.95