Metric measuring units worksheets - Free Printable

Of course! This worksheet is about converting between centimeters (cm) and millimeters (mm). The key to solving all these problems is understanding the relationship between these two metric units.

The Conversion Rule

The fundamental conversion you need to remember is:

> 1 centimeter (cm) = 10 millimeters (mm)

This means:
* To convert centimeters to millimeters, you multiply by 10.
* `cm × 10 = mm`
* To convert millimeters to centimeters, you divide by 10.
* `mm ÷ 10 = cm`

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Solving the Problems

Let's go through each problem step-by-step using the rule above.

#### 1. a. 6 cm = ______ mm
* Multiply 6 by 10.
* `6 × 10 = 60`
* Answer: 60 mm

#### 1. b. 9 cm = ______ mm
* Multiply 9 by 10.
* `9 × 10 = 90`
* Answer: 90 mm

#### 2. a. 50 mm = ______ cm
* Divide 50 by 10.
* `50 ÷ 10 = 5`
* Answer: 5 cm

#### 2. b. 100 mm = ______ cm
* Divide 100 by 10.
* `100 ÷ 10 = 10`
* Answer: 10 cm

#### 3. a. 1 cm = ______ mm
* Multiply 1 by 10.
* `1 × 10 = 10`
* Answer: 10 mm

#### 3. b. 8 cm = ______ mm
* Multiply 8 by 10.
* `8 × 10 = 80`
* Answer: 80 mm

#### 4. a. 70 mm = ______ cm
* Divide 70 by 10.
* `70 ÷ 10 = 7`
* Answer: 7 cm

#### 4. b. 30 mm = ______ cm
* Divide 30 by 10.
* `30 ÷ 10 = 3`
* Answer: 3 cm

#### 5. a. 40 mm = ______ cm
* Divide 40 by 10.
* `40 ÷ 10 = 4`
* Answer: 4 cm

#### 5. b. 20 mm = ______ cm
* Divide 20 by 10.
* `20 ÷ 10 = 2`
* Answer: 2 cm

#### 6. a. 50 mm = ______ cm
* Divide 50 by 10.
* `50 ÷ 10 = 5`
* Answer: 5 cm

#### 6. b. 60 mm = ______ cm
* Divide 60 by 10.
* `60 ÷ 10 = 6`
* Answer: 6 cm

#### 7. a. 80 mm = ______ cm
* Divide 80 by 10.
* `80 ÷ 10 = 8`
* Answer: 8 cm

#### 7. b. 20 mm = ______ cm
* Divide 20 by 10.
* `20 ÷ 10 = 2`
* Answer: 2 cm

#### 8. a. 80 mm = ______ cm
* Divide 80 by 10.
* `80 ÷ 10 = 8`
* Answer: 8 cm

#### 8. b. 30 mm = ______ cm
* Divide 30 by 10.
* `30 ÷ 10 = 3`
* Answer: 3 cm

#### 9. a. 3 cm = ______ mm
* Multiply 3 by 10.
* `3 × 10 = 30`
* Answer: 30 mm

#### 9. b. 8 cm = ______ mm
* Multiply 8 by 10.
* `8 × 10 = 80`
* Answer: 80 mm

#### 10. a. 10 mm = ______ cm
* Divide 10 by 10.
* `10 ÷ 10 = 1`
* Answer: 1 cm

#### 10. b. 10 cm = ______ mm
* Multiply 10 by 10.
* `10 × 10 = 100`
* Answer: 100 mm

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Final Answer Key

Here is the completed worksheet with all the answers filled in:

Measuring Units Worksheet

Convert.

1. a. 6 cm = 60 mm
1. b. 9 cm = 90 mm

2. a. 50 mm = 5 cm
2. b. 100 mm = 10 cm

3. a. 1 cm = 10 mm
3. b. 8 cm = 80 mm

4. a. 70 mm = 7 cm
4. b. 30 mm = 3 cm

5. a. 40 mm = 4 cm
5. b. 20 mm = 2 cm

6. a. 50 mm = 5 cm
6. b. 60 mm = 6 cm

7. a. 80 mm = 8 cm
7. b. 20 mm = 2 cm

8. a. 80 mm = 8 cm
8. b. 30 mm = 3 cm

9. a. 3 cm = 30 mm
9. b. 8 cm = 80 mm

10. a. 10 mm = 1 cm
10. b. 10 cm = 100 mm