Answer :

Sammyttylxox
U can show your work by underlining what your rounding and showing which place it is it the right of it but there is no mathematical work
for example what ii do is that if there is a decimal and that decimal is 3.18 what i would do is put a line under the one so 3.18 and then i will draw an arrow from the one to the 8 and then i will put = 3.20       -     

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