Question

If a gardener measured the tallest sunflower and it has grown a height of 65 in. The sunflower has grown to 12.1 in. since the last time it was measured. How tall was the sunflower when it was last measured?

Answer 1

65 - 12 = 53
assuming 2 significant figure data
65.0 - 12.1 = 52.9 assuming 3 significant figure data