Compare the following numbers: `2. 7xx10^(12)\ a n d\ 1. 5xx10^8` `4xx10^(14)a n d\ 3xx10^(17)`

Compare the following numbers: 2.7xx10^(10), 1.5xx10^8

Compare the following numbers 2.7xx10^(12);1.5xx10^(8)

Compare the following numbers : ( i ) 27xx10^(12),15xx10^(8)( ii) 4xx10^(14),3xx10^(17)

Write the following numbers in the usual form: 7.54 xx10^6 (ii) 9.325 xx10^(12) 8.4 xx10^2

Write the following numbers in the usual from: 4. 83xx10^7 (ii) 3. 21xx10^5 3. 5xx10^3

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)

Find the number from each of the following expanded forms :(a) 8xx10^(4)+6xx10^(3)+0xx10^(2)+4xx10^(1)+5xx10^(0) (b) 4xx10^(5)+5xx10^(3)+3xx10^(2)+2xx10^(0)(c)3xx10^(4)+7xx10^(2)+5xx10^(0)