You want to estimate 5.25-3.3

Question

You want to estimate 5.25-3.3
why would using front-end estimation tell you more about the answer than rounding?
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bobpursley · Answer

3.3 is about 3.25, so I would estimate 2.

sahana · Answer

you want to estimate 5.25-3.3. why would using front-end estimation and adjusting tell you more about the answer than rounding?