A. (7,3 x 10-3) – (3 x 10-4)b. (4,2 x 10-5) x (5 x 102)​

Jawaban:

a. ( 7,3 × 10 – 3 ) – ( 3 × 10 – 4 ) =

70 – 26 =

= 44

b. ( 4,2 × 10 – 5 ) × ( 5 × 102 ) =

37 × 510 =

= 18,870