Suppose you subtract a 2 digit number from 200.will you have to ungroup hundred or tens ? explain. give an example.

If you subtract a number from 2 digits to 200 you will have to ungroup hundred.
 Let's make an example of this operation:
 For this we choose a number of two digits whose value is the largest:
 200-99 = 101
 
 you have to ungroup hundred

Add up all the sides

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