Question

Last year, the Fine Pens Company produced
1.7
×
10
7
pens and the Super Pens Company Produced
2
,
500
,
000
pens. What is the difference between the number of pens the Fine Pens Company produced and the number of pens the Super Pens Company produced?


0.80
×
10
1


1.45
×
10
7


1.95
×
10
7


2.33
×
10
7

Answer 1

Convert both to the same power of ten:
2,500,000 = 2.5 × 10^6 and 1.7 × 10^7 = 17 × 10^6.
Subtract: 17 × 10^6 − 2.5 × 10^6 = 14.5 × 10^6 = 1.45 × 10^7.

Answer: 1.45 × 10^7.