Lesson 2: Dividing by 10, 100, 1000 and Their Multiples

​Recall

Use your knowledge in dividing decimals by 10, 100, 1000 and their multiples to answer the questions.

Multiple Choice

What is 0.102 x 10?

• 102

• 1020

• 1.02

• 0.0102

Multiple Choice

Multiply 5.01 x 10?

• 501

• 0.501

• 50.1

• 501.0

Multiple Choice

21.12 x 30 = _____

• 63.39

• 6.339

• 633.9

• 6339

Multiple Choice

What is 0.523 x 100?

• 523

• 523.0

• 52.3

• 0.0523

Multiple Choice

Multiply 32.123 x 100.

• 3212.3

• 321.23

• 32123

• 3.2123

Multiple Choice

62.12 x 400 = ____

• 2484.8

• 24 848

• 248.48

• 2.4848

Multiple Choice

What is 100.2302 x 1000?

• 100 230.2

• 1002.302

• 100.2302

• 1 002 302

Multiple Choice

1.2356 x 2000 =____

• 247.12

• 2471224

• 24.712

• 2 471.2

Lesson 2: Dividing by 10, 100, 1000 and Their Multiples

by Jacell JayA

​Dividing by 10 and its multiples

​Remember: When you divide a decimal by 10, you can move the decimal point 1 place to the left.

​

Example:

1) 1 ÷ 10 = 0.1

​ 2) 0.1 ÷ 10 = 0.01

​ 3) 0.01 ÷ 10 = 0.001

​ 4) What is 50.1 ÷ 10 ?

​ 50.1 ÷ 10 = 5.01

​ 5) What is 2.35 ÷ 10?

​ 2.35 ÷ 10 = 0.235

Multiple Choice

What is 21 ÷ 10?

• 0.21

• 2.1

• 210

• 0.021

Multiple Choice

What is 3.2 ÷ 10?

• 32

• 0.032

• 0.32

• 320

Multiple Choice

What is 5.03 ÷ 10?

• 0.503

• 0.0503

• 503

• 530

​1)What is 6 ÷ 30 ?

1)​What is 0.6 ÷ 30?

​1) What is 0.06 ÷ 30?

Use the method you know to get the answer.

​Test your ability!

​Try 2A Find the missing numbers.

​a) 8 ÷ 40 = 8 ÷ ___ ÷ 10

​ = ___ ÷ 10

​ = ___

​

b) 6 ÷ 20 = 6 ÷ ___ ÷ 2

​ = ___ ÷ 2

​ = ___

​

c) 0.8 ÷ 40 = ___ d) 0.6 ÷ 20 = ___

​e) 0.08 ÷ 40 = ___ f) 0.06 ÷ 20 = ___

​TRY 2B Divide.

​a) 15 ÷ 30 = ___

​b) 2.4 ÷ 40 = ___

​c) 0.21 ÷ 70 = ___

​d) 2.05 ÷ 50 = ___

​Dividing by 100 or 1000 and their multiples

​Study the following examples.

a) What is 60 ÷ 100 ? = 0.6

​b) What is 6 ÷ 100? = 0.06

​c) What is 0.6 ÷ 100? = 0.006

​d) What is 24 ÷ 100? = 0.24

​e) What is 4.2 ÷ 100? = 0.042

f) What is 300 ÷ 1000? = 0.3

​g) What is 30 ÷ 1000? = 0.03

​Alert! Some questions ahead.

Multiple Choice

What is 308 ÷ 100?

• 0.308

• 3.08

• 30.8

• 308

Multiple Choice

Divide. 3.8 ÷ 100

• 0.38

• 0.0038

• 0.038

• 3.8

Multiple Choice

Find the quotient.  30.8 ÷ 100

• 3.08

• 0.308

• 0.0308

• 0.0038

​Share your ideas.

​What is 60 ÷ 300?

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​What is 6000 ÷ 3000?

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