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Magnifying Glass Place Value Lab

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Magnifying Glass Place Value Lab

Compare digits that are worth 10 times as much or 1/10 as much.

Digits on the lab bench

Each place is worth 10 times the place to its right. Fill in each blank.

1.
Kenji's water tank holds 6,666 milliliters.

The 6 in the thousands place is worth . The 6 in the hundreds place is worth .

2.
Look at 6,666 again.

The 6 in the thousands place is worth times as much as the 6 in the hundreds place.

3.
A snail crawled 77.77 centimeters across the lab table.

The 7 in the tenths place is worth 0.7. The 7 in the hundredths place is worth . So 0.7 is times as much as 0.07.

4.
Amara's magnifier makes things look 10 times as long as they really are. Through the magnifier, a seed looks 50 millimeters long.

The seed is really millimeters long.

5.
Luis looks through a lens that makes things look 1/10 as long as they really are. He looks at a leaf that is 4 centimeters long.

Through the lens, the leaf looks centimeters long.

6.
A digit 3 is in the hundredths place, so it is worth 0.03. Then it moves one place to the left.

Now the 3 is in the tenths place. It is worth .

7.
A box holds 2,000 paper clips. The lab uses 1/10 of them for a magnet test.

The lab uses paper clips.

Compare the places

Choose, match, circle, and sort.

8.
Nadia measured a crystal that is 8.88 millimeters wide. How does the 8 in the tenths place compare to the 8 in the ones place?
Question 8 options
9.
In 4.38, the 3 is worth 0.3. Which number has a 3 that is worth 10 times as much as the 3 in 4.38?
Question 9 options
10.
Match each value to the value that is 10 times as much.
11.
In 520, the 2 is worth 20. Circle every number in which the 2 is worth 1/10 as much as the 2 in 520.

12.
Compare the first digit with the second digit. Is the first digit worth 10 times as much or 1/10 as much as the second digit?

Explain your thinking

Use place value words in your answer.

13.
Mia says the 4 in 0.45 is worth 10 times as much as the 4 in 4.5 because 0.45 has more digits. Is Mia right? Explain.