Q. 25.0( 3 Votes )
Out of the four options, only one is correct. Write the correct answer.
For a fixed base, if the exponent decreases by 1, the number becomes
A. One-tenth of the previous number.
B. Ten times of the previous number.
C. Hundredth of the previous number.
D. Hundred times of the previous number.
Answer :
For the fixed base, if the exponent decrease by 1, the number becomes one-tenth of the previous number.
e.g; for 107, when the exponent is decreased by 1
it becomes 107-1 = 106
Now, 
Hence option A is the correct option.
Rate this question :
Quiz | Mastering Powers and Exponents45 mins
Genius Quiz | Powers and Exponents27 mins
Smart Revision | Learning the Laws on Exponents50 mins
NCERT | Laws of Exponents25 mins
QUIZ | Exponents and Power35 mins
Quiz | Powers and Exponennts43 mins
Champ Quiz | Power and Exponents31 mins
Master Exponents & Power37 mins
Advance Problems in Exponents & Power40 mins
Smart Revision | Laws of Exponents46 mins
Express the product of 3.2 × 106 and 4.1 × 10–1 in the standard form.
NCERT - Mathematics ExemplarSimplify:
Out of the four options, only one is correct. Write the correct answer.
3–2 can be written as
NCERT - Mathematics ExemplarOut of the four options, only one is correct. Write the correct answer.
The value of 
is
Express 16–2 as a power with the base 2.
NCERT - Mathematics ExemplarExpress as a power of a rational number with negative exponent.
(25 ÷ 28) × 2–7
NCERT - Mathematics ExemplarFill in the blanks to make the statements true.
By solving (60 – 70) × (60 + 70) we get ________.
NCERT - Mathematics ExemplarFill in the blanks to make the statements true.
The value of [2–1 × 3–1]–1 is _________.
NCERT - Mathematics ExemplarFill in the blanks to make the statements true.
The value for (–7)6 ÷ 76 is _________.
NCERT - Mathematics Exemplar