Add `6.65 10^(4)` and `8.95'10^(3)`.

Add 6.65xx10^(4) and 8.95xx10^(3) .

Calculate the following a. (6.7 xx 10^(5)) xx (4.6 xx 10^(4)) b. (7.6 xx 10^(7)) xx (3.8 xx 10^(-4)) c. (6.8 xx 10^(-3)) xx (5.2 xx 10^(-4)) d. (6.7 xx 10^(5)) / (4.6 xx 10^(4)) e. (7.6 xx 10^(7)) / (3.8 xx 10^(-4)) f. (6.8 xx 10^(-3)) / (3.8 xx 10^(-4)) g. 7.65 xx 10^(2) + 2.72 xx 10^(3) h. 7.87 xx 10^(-4) - 2.61 xx 10^(-5)

Calculate the following a. (6.7 xx 10^(5)) xx (4.6 xx 10^(4)) b. (7.6 xx 10^(7)) xx (3.8 xx 10^(-4)) c. (6.8 xx 10^(-3)) xx (5.2 xx 10^(-4)) d. (6.7 xx 10^(5)) / (4.6 xx 10^(4)) e. (7.6 xx 10^(7)) / (3.8 xx 10^(-4)) f. (6.8 xx 10^(-3)) / (3.8 xx 10^(-4)) g. 7.65 xx 10^(2) + 2.72 xx 10^(3) h. 7.87 xx 10^(-4) - 2.61 xx 10^(-5)

Add : 8+6

Add : 8+6

Add 4.00 xx 10^(-2) , 3.26 xx 10^(-3) and 1 xx 10^(-6) to the correct number of significant digits :

(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.

Add (11)/(8) and (-6)/(8).