Decimal Review

Presentation

•

Mathematics

•

7th - 8th Grade

•

Easy

Ashley Lujano

Used 14+ times

FREE Resource

19 Slides • 18 Questions

Decimal Review:

Adding, Subtracting, Multiplying and Dividing

By Ms. Lujano

Open Ended

How are you doing today?

Type response here

Today, we will review how to add, subtract, multiply and divide decimals.

Objective:

STEP 1: Line up your decimals

Adding Decimals

STEP 1: Line up your decimals

STEP 2: Place the decimal point in line with the others.

Adding Decimals

STEP 1: Line up your decimals

STEP 2: Place the decimal point in line with the others.

STEP 3: ADD

Adding Decimals

Let's Practice!

Fill in the Blanks

Solve:

$2.2$ + 4.4

Type answer...

Fill in the Blanks

Solve:

4.7 + 1.1 =

Type answer...

Multiple Choice

Solve:

$2.952\$ + $39.24$

42.192

6.876

42.76

36.2

Poll

Are you able to add decimals?

I understand this and can teach others

😁

I understand this but need more practice

😌

I still need help

🤨

I do not understand this at all

🙁

Subtracting Decimals

STEP 1: Line up your decimals

Subtracting Decimals

STEP 1: Line up your decimals

STEP 2 : Place the decimal point in line with the others.

Subtracting Decimals

STEP 1: Line up your decimals

STEP 2 : Place the decimal point in line with the others.

STEP 3: Subtract

Let's Practice!

Fill in the Blanks

Solve:

$8.4$ - $4.1$ =

Type answer...

Multiple Choice

Solve:

$24.6-21.9=$

46.5

2.7

4.665

Multiple Choice

Solve:

$10$ - $3.58$ =

6.42

3.4

348

Poll

Are you able to subtract decimals?

I understand this and can teach others

😁

I understand this but need more practice

😌

I still need help

🤨

I do not understand this at all

🙁

STEP 1: Multiply the numbers

Multiplying Decimals

STEP 1: Multiply the numbers

STEP 2: COUNT the number of decimal places

Multiplying Decimals

STEP 1: Multiply the numbers

STEP 2: COUNT the number of decimal places

STEP 3: Place the decimal the SAME number of swoops you counted

Multiplying Decimals

Let's Practice!

Multiple Choice

Solve:

$9.5\ \times3\ =$

28.5

2850

12.5

Multiple Choice

Solve:

$3.4\ \times10$

3.4

3400

13.4

Multiple Choice

Solve:

$0.4\times1.8=$

2.2

0.72

Poll

Are you able to multiply decimals?

I understand this and can teach others

😁

I understand this but need more practice

😌

I still need help

🤨

I do not understand this at all

🙁

STEP 1: Divisor needs to be a WHOLE number. Move the decimal to the right until it becomes a whole number.

Dividing Fractions

STEP 1: Divisor needs to be a WHOLE number. Move the decimal to the right until it becomes a whole number.

STEP 2: DIVIDE

Dividing Fractions

STEP 1: Divisor needs to be a WHOLE number. Move the decimal to the right until it becomes a whole number.

STEP 2: DIVIDE

STEP 3: Place the decimal above the decimal point in the dividend.

Dividing Fractions

Let's Practice!

Multiple Choice

Solve:

$9.5\div5$

190

1.9

Multiple Choice

Solve:

$4.8\div2=$

2.4

2.8

Multiple Choice

Solve:

$5.4\div0.2=$

Poll

Are you able to divide decimals?

I understand this and can teach others

😁

I understand this but need more practice

😌

I still need help

🤨

I do not understand this at all

🙁

Open Ended

Do you have any final questions or concerns?

Type response here

ALL DONE! Great Job!

Decimal Review:

Adding, Subtracting, Multiplying and Dividing

By Ms. Lujano

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