Write in decimal form: 3 cm 7 mm = ? cm
Remember that 1 cm = 10 mm
Which means 1 mm = 1/10 cm = 0.1 cm
So 7 mm = 7/10 cm = 0.7 cm
Therefore, 3 cm 7 mm = 3.7 cm
Remember that 1 cm = 10 mm
Which means 1 mm = 1/10 cm = 0.1 cm
So 7 mm = 7/10 cm = 0.7 cm
Therefore, 3 cm 7 mm = 3.7 cm
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