Question

the average sunflower has 34 petals. which is the best estimate of the total number of petals on 57 sunflowers

Answer 1

34 petals round down to 30

57 sunflowers round up to 60

so you are only 1 off, 34 - 30 = 4 // 60 - 57 = 3 // 4 - 3 = 1

30 * 60 = 1800 is the best estimate