1 cm = 10 mm
7 cm = 70 mm
which is greater than 64 mm
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Convert to the same units then you can compare the numbers. 1 cm = 10 cm → 64 cm = 64 × 10 mm = 640 mm 640 > 630 → 640 mm > 630 mm → 64 cm > 630 mm → 64 cm is greater than 630 mm.
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Longer. 362mm equals 36.2cm
8 centimeters is 40 times longer than 2 millimeter.
1 cm = 10 mm 10 cm = 10*10 = 100 mm 38.5 is less than 100 mm So 38.5 is less than 10 cm