Place Value and Powers of 10

Multiple Choice

What place value is underlined in:

12.342

• Tens

• Ones

• Tenths

• Hundredthes

• Thousandths

Multiple Choice

Which digit shows the tenths place value in 520.345?

• 5
• 4
• 3
• 2

Multiple Choice

Which place value is underlined in

917.24

• Tens

• Ones

• Tenths

• Hundredths

• Thousandths

Multiple Choice

9.03
Which number is in the tenths place?

• 9
• 0
• 3

Multiple Choice

Which of the following choices is the correct way to write/say the following number in word form?
176.003

• one hundred and seventy six and three hundredths
• one hundred seventy-six and three thousandths
• one hundred seventy-six and three hundredths
• one hundred seventh-six and three tenths

Compare decimals by lining up place value and looking at each spot specifically. Start on the left of the decimal and then work your way to the right.

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Compare Decimals

Multiple Choice

Which number is bigger?

• 8.23

• 8.237

Multiple Choice

Choose the symbol that makes the statement below true.

0.85______0.82

• $$>$$

• $$<$$

• $$=$$

Multiple Choice

Use place value to compare. Write <, >, or =.

• <

• >

• =

Multiple Choice

Which is bigger?

• 0.5

• 0.17

Multiple Choice

.001

• one tenth
• one hundredth
• one thousandth

Multiple Choice

When moving from one place value to the next, by how much do numbers change?

• by 100

• by 1

• by 10

• by 1,000

If you move the decimal one place in either direction, we call that "schooping."

It changes no digits, just the place value. This is because multiplying or dividing by 1 changes nothing. The zeros cause the shift.
The direction makes sense if you ask yourself if the number is getting bigger or smaller.​

"Schwoop" the decimal

Multiple Choice

What does the 5 in the decimal .257 represent?

• fifths
• five tenths
• fiftieths
• five hundredths

Look!

Multiplying by 10- move decimal one space to right

Dividing by 10- move decimal one space to left

Multiplying by 100- move decimal two spaces to right

Dividing by 100- move decimal two spaces to left

Multiplying by 1,000- move decimal three spaces to right

Diving by 1,000- move decimal three spaces to left

AND THIS PATTERN CONTINUES ON!!!!!

Multiple Choice

When you multiply by the power of 10 will the decimal move to the right or to the left?

• Right

• Left

Multiple Choice

When you divide by the power of 10 will the decimal move to the right or the left?

• Right

• Left

Fill in the Blanks

Moving the decimal point is the same as multiplying by

.

Fill in the Blanks

Does moving the decimal to the right make a number bigger or smaller?

Multiple Choice

We will start easy. Multiply 6 by 100.

• 600

• 0.06

• 6

• 60

Multiple Choice

Move the decimal point two spaces to the right: 71

What number did you get?

• 710

• 71.0

• 7100

• 788849