Question

5м12см-3м48дм  

Answer 1

5м12см=512см

3м48дм=780см

 

512см-780см=-268см

-2м68см

 

Answer 2

512-348=164(см)1м6дм4см

Answer 3

To subtract these two lengths, we need to convert them to a common unit of measurement. Let's convert 5m 12cm to centimeters and 3m 48dm to centimeters:

5m 12cm = (5 x 100)cm + 12cm = 512cm

3m 48dm = (3 x 100)cm + (48 x 10)cm = 300cm + 480cm = 780cm

Now we can subtract the lengths in centimeters:

512cm - 780cm = -268cm

Therefore, the result of the subtraction is -268cm.