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A student said we cannot subtract 1,97 from 20 because 1.97 has two decimal digits and 20 has none. Do u agree with him?

A student said we cannot subtract 197 from 20 because 197 has two decimal digits and 20 has none Do u agree with him class=

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sugarplum5430

Answer:

I do not agree with him.

Step-by-step explanation:

even though 20 has no visible decimal digits it has an infinite amount of zeros in the decimal digits. since 1.97 has two digits, then we can just write 20 as 20.00

20.00

-  1.97

_____

 18.03

proof:

18.03

+1. 97

______

20.00

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