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Activity 2 Centimeters and Millimeters

Learn how to show 3 and 0.4 as a decimal.

0123 4
centimeters

4 mm can be written as a fraction, 4 cm. If 1 cm is divided
10 into 10 equal parts,
1 part is the same as
4 mm can be written as a decimal, 0.4 cm.
1 mm.
Therefore, 3 and 0.4 can be written as 3.4,
and read as three and four tenths.

1 . Write the colored parts as a decimal.

a.

012

b. 1 23

0 b. 6 cm 8 mm =
d. 4 cm 6 mm =
2 . Write the missing number. cm
cm
a. 7 cm 4 mm = 7.4 cm

c. 5 cm 9 mm = cm

27. What Is the Dot? 99
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