8 centimeters is blank times as long as 5 millimeaters
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M is 1000 times mm (meter and millimeter)
The same object that is 11.5 cm long
2cm and 7mm is equal to 27 mm, which is therefore less than 37mm.
7 cm 8 mm - 6 cm = 1 cm 8 mm = 1.8 cm or 18 mm
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.