3,5m-20cm+900mm =berapa cm

3,5 m - 20 cm + 900 mm = ... cm
3,5 m = 3,5 x 100 cm = 350 cm
900 mm = 900 : 10 cm = 90 cm

350 cm - 20 cm + 90 cm = 420 cm.

3,5m-20cm+900mm =.....cm
=(3,5×100cm)-20cm+(900÷10)
=350cm-20cm+90cm
=330cm+90cm
=420cm

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