Question 1 :
Express the number appearing in the statement in standard form: The earth has 1,353,000,000 cubic km of sea water
Question 2 :
Express the number appearing in the statement in standard form: ) 60,230,000,000,000,000,000,000 molecules are contained in a drop of water weighing 1.8 gm.
Question 5 :
Express the following numbers as a product of powers of prime factors: 16000
Question 8 :
Express the number appearing in the statement in standard form: The population of India was about 1,027,000,000 in March, 2001.
Question 9 :
Express each of the following as product of powers of their prime factors: 648
Question 10 :
State true or false - in the expanded form, 279404 = 2 × $10^5$ + 7 × $10^4$+ 9 × $10^3$ + 4 × $10^2$ + 0 × $10^1$ + 4 ×$10^0$
Question 11 :
Using laws of exponents, simplify and write the answer in exponential form: $7^x\times7^2$
Question 12 :
Express the number appearing in the statement in standard form: In a galaxy there are on an average 100,000,000,000 stars.
Question 13 :
Write exponential form for 8 × 8 × 8 × 8 taking base as 2.
Question 15 :
Express each of the following as product of powers of their prime factors: 3600
Question 17 :
Put into another form using $a^m$ × $b^m$ = $(ab)^m$ : $5^6\times(-2)^6$
Question 19 :
Express the following in exponential form: 5 × 5× 7 × 7 × 7
Question 20 :
Put into another form using $a^m$ × $b^m$ = $(ab)^m$ : $a^2\times t^2$