What We Have Discussed?

Numbers with negative exponents holds the following laws of exponents:

(a) a−m × an = a−m+n

(b) a−man = a−m−n = 1am+n

(c) a−mn = a−mn

(c) a−m × b−m = ab−m

(d) a0 =

(e) a−mb−m = ab−m

Very small numbers can be expressed in standard form using exponents.

Comparison of smaller and larger numbers.

Identification of common errors.