helpp! i am very confused on how to roundup decimals with 1st significant figure, 2nd figure and third figure.These are the decimals :

. 6.35228
. 34.026
. 0.005708
. 150.932
. 0.00007835
Pleas guide me through so I will know what to do.

1 answer

6.35228

to one figure should this be 6 or 7 ?
well 3 is less than five
so
6

to two figures should this be 6.3 or 6.4?
well 5 anything is more than halfway to the next digit so
6.4

to three figures should this be 6.35 or 6.36?
well 2 is less than 5 so
6.35

to four figures should this be 6.352 or 6.353?
again 2 is less than 5 so
6.352

to five figures should this be 6.3522 or 6.3523
well 8 is BIGGER than 5 so
6.3523
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