Exponents and Powers Extra Questions Solution for Class 7

Exponents and Powers Class 7 Mathematics Extra Question and Answers for CBSE / NCERT Board Students

Exponents and Powers Extra Questions and Answers for Class 7 Level Students of CBSE / NCERT Board Published in this Page. Here we provided 01 Marks that’s mean MCQ Type Questions and their Solution And Long Answer Type Questions & Solution. Class VII Students can follow this Page.

Long Answer Type

(1) If 3x = 900 then find the value of 3 (x-2).

(3) Express the following numbers in standard form 5,83,00,00,00,000 24 million

(4) If 5y = 652 , then what is the value of y ?

Solution:

MCQ Type

(1) in power notation can be written as

(a)

(b)

(c)

(d)  

(2) The exponential form of 8×8×8×8 with base 2 is

(a) 210

(b) 28

(c) 212

(d) 29

(4) Standard form of 86 867000000000000000000 is

(a) 8.67×1020

(b) 86.7 × 1020

(c) 867×1017

(d) 86.7× 1019

(5) X5 X2 IS

(a) X

(B) X2

(C) X3

(D) X4

(6) The value of a0 is a

(a) 0

(b) 1

(c) a

(d) Not defined

Short Answer Type

Solution:

Very Short Answer Type

(1) Express 0.0084 in scientific notation.

(2) Express 0.000004156 standard form

(3) Find y8 xy7

(4) Value of (50-70) × (50+70+60)

(5) Express 4×4×a×4×a×4×a×a×4 in exponential form.

Solution:


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