Question

11. Which is greater?
a) 2.5X105
or 7.4 X 10-5 b) 1.9 X 10-6
or 1.2 X 10-7

Answer 1

Answer:

a)2.5×105

b) 1.9×10-6

Answer 2

a)262.5×105=262.5

7.4×10-5=69

262.5 is greater

b)1.9×10-6=13

1.2×10-7=5

13 is greater

Hope it helps