WAEC - Mathematics (2021 - No. 1)
correct 0.007985 to three significant figures.
0.0109
0.0800
0.00799
0.008
คำอธิบาย
- To round to three significant figures, look at the fourth significant figure. It's a 5 , so round up or round down if below 5.
- To round to two significant figures, look at the third significant figure. It's an 8 , so round up.