[" 11.a) Add "3.8times10^(-6)" to "4.2times10^(-5)" with due regard to significant ig es."],[" b) Subtract "3.2times10^(-6)" from "4.7times10^(-4)" with due regard to fighi Ca i figures."]

Substract 3.2 xx 10^(-6) from 4.7 xx 10^(-4) with due regard to significant figures.

(a).Add 3.8 xx 10^(-6) to 4.2 xx 10^(-5) with due regard to significant figures. (b). Subtract 3.2 xx 10^(-6) from 4.7 xx 10^(-4) with regard to significant figures. ( c ). Subtract 1.5 xx 10^(3) from 4.8 xx 10^(4) with due regard to significant figures.

(a).Add 3.8 xx 10^(-6) to 4.2 xx 10^(-5) with due regard to significant figures. (b). Subtract 3.2 xx 10^(-6) from 4.7 xx 10^(-4) with regard to significant figures. ( c ). Subtract 1.5 xx 10^(3) from 4.8 xx 10^(4) with due regard to significant figures.

Subtract 2.5xx10^(6) "from" 4.0xx10^(4) with due regard to significant figures.

If 2.6times10^(-6) is added to 3.2times10^(-5) with due regard to significant figures,then the result will be

The result after adding 3.8xx10^(-6) to 4.2xx10^(-5) with due regard to significant figures is

Subtract 2.5xx10^(4) "from" 3.9xx10^(5) with due regard to significant figures.

Subtract 2.5xx10^4 and 3.9xx10^5 with due regard to significant figures.

The result after adding 3.8xx10^(-6) and 4.2xx10^(-5) with due regards to significant figures is

The result after adding 3.8xx10^(-6) and 4.2xx10^(-5) with due regards to significant figures is