Students can Download Maths Chapter 10 Exponents Ex 10.2 Questions and Answers, Notes Pdf, KSEEB Solutions for Class 8 Maths helps you to revise the complete Karnataka State Board Syllabus and score more marks in your examinations.
Karnataka Board Class 8 Maths Chapter 10 Exponents Ex 10.2
Question 1.
Simplify
i. 31 × 32 × 33 × 34 × 3s × 36
ii. 22 × 33 × 24 × 35 × 36
Answer:
i. 31+2+3+4+5+6
= 321
[am x an = am+n]
ii. 22 × 33 × 24 × 35 × 36 [am x an = am+n]
= 22+4 × 33+5+6
= 26 × 314
Question 2.
How many zeros are there in 104 x 103 x 102 x 10?
Answer:
104 × 103 × 102 × 10
= 104+3+2+1
= 1010
There are 10 zeros.
Question 3.
Which is larger (53 x 54 x 5s x 56) or (57 x 58)
Answer:
53 x 54 x 55 x 56
= 53+4+5+6
= 518 57 x 58
= 57+8
= 58
∴ 53 x 54 x 5s x 56 is larger than 57 x 58