round the bend!

I have noticed that some of you have some funky ways to round your numbers!!  Heads up guys, we don't expect anything fancy, just round up if you have a 5 or above to the right of the digit you are rounding, or do nothing if you have a 4 or below to the right of the digit you are rounding....

image taken from: https://www.tes.com/lessons/NMCs-ufl5zyH1Q/rounding

So some examples....

1.6 rounded to 1 significant figure would be 2
2.8893 rounded to 4 significant figures would be 2.889
3909 rounded to 3 significant figures would be 3910
4599 rounded to 3 significant figures would be 4600

I have checked with your lecturers - this is the way they want you to do rounding! So, nothing special :)