Students can Download Class 8 Maths Chapter 10 Exponents Ex 10.1 Questions and Answers, Notes Pdf, KSEEB Solutions for Class 8 Maths helps you to revise the complete Karnataka State Board Syllabus and to clear all their doubts, score well in final exams.
Karnataka State Syllabus Class 8 Maths Chapter 10 Exponents Ex 10.1
Question 1.
Express the following numbers in the exponential form.
i. 1728
ii.
iii. 0.000169
Answer:
i. 1728= 12 x 12 x 12
1728= 123
ii. \(\frac{1}{512}=\frac{1}{2^{9}}=2^{-9}\)
iii. 0.000169 = (0.013)-2
Question 2.
Write the following numbers using base 10 and exponents.
i. 12345
ii. 1010.0101
iii. 0.1020304
Answer:
i. 12345
Answer:
12345 = 10000 + 2 × 1000 + 3 × 100 + 4 × 10 + 5
= 104 +2 × 103 + 3 × 102 + 4 × 10 + 5
(ii) 1010.0101
Answer:
1010.0101 = 1 × 1000 + 0 × 100 + 1 × 10 + 0 +
(iii) 0.1020304
Answer:
0.1020304 = 0.1 + 0.00 + 0.002 + 0.0000 + 0.00003 + 0.000000 + 0.0000004
Question 3.
Find the value of (-0.2)-4
Answer:
= -5 x -5 x -5 x -5
= 625