Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Extra Questions for Class 7 Maths Chapter 13 Exponents and Powers Exponents and Powers Class 7 Extra Questions Very Short Answer Type Question 1. Express 343 as a power of 7. Solution: We have 343 = 7 × 7 × 7 = 73 Thus, 343…
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NCERT Solutions for Class 7 Maths Chapter 13 Exponents and Powers Ex 13.3 NCERT Solutions for Class 7 Maths Chapter 13 Exponents and Powers Exercise 13.3 Ex 13.3 Class 7 Maths Question 1. Write the following numbers in the e×panded forms: 279404, 3006194, 2806196, 120719, 20068 Solution: (i) 279404 = 2 × 100000 + 7…
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NCERT Solutions for Class 7 Maths Chapter 13 Exponents and Powers Ex 13.2 NCERT Solutions for Class 7 Maths Chapter 13 Exponents and Powers Exercise 13.2 Ex 13.2 Class 7 Maths Question 1. Using laws of e×ponents, simplify and write the answer in e×ponential form: (i) 32 × 34 × 38 (ii) 615 ÷ 610…
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NCERT Solutions for Class 7 Maths Chapter 13 Exponents and Powers NCERT Solutions for Class 7 Maths Chapter 13 Exponents and Powers Exercise 13.1 Ex 13.1 Class 7 Maths Question 1. Find the value of (i) 26 (ii) 93 (iii) 112 (iv) 54 Solution: (i) 26 = 2 × 2 × 2 × 2 ×…
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Algebraic Expressions Class 7 Extra Questions Maths Chapter 12 Extra Questions for Class 7 Maths Chapter 12 Algebraic Expressions Algebraic Expressions Class 7 Extra Questions Very Short Answer Type Question 1. Identify in the given expressions, terms which are not constants. Give their numerical coefficients. (i) 5x – 3 (ii) 11 – 2y2 (iii) 2x…
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NCERT Solutions for Class 7 Maths Chapter 12 Algebraic Expressions Ex 12.4 NCERT Solutions for Class 7 Maths Chapter 12 Algebraic Expressions Exercise 12.4 Ex 12.4 Class 7 Maths Question 1. Observe the patterns of digits made from line segments of equal length. You will find such segmented digits on the display of electronic watches…
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NCERT Solutions for Class 7 Maths Chapter 12 Algebraic Expressions Ex 12.3 NCERT Solutions for Class 7 Maths Chapter 12 Algebraic Expressions Exercise 12.3 Ex 12.3 Class 7 Maths Question 1. If m = 2, find the value of: (i) m – 2 (ii) 3m – 5 (iii) 9 – 5m (iv) 3m2 – 2m…
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NCERT Solutions for Class 7 Maths Chapter 12 Algebraic Expressions Ex 12.2 NCERT Solutions for Class 7 Maths Chapter 12 Algebraic Expressions Exercise 12.2 Ex 12.2 Class 7 Maths Question 1. Simplify combining like terms: (i) 21b -32 + 7b- 206 (ii) -z2 + 13z2 -5z + 7z3 – 152 (iii) p – (p –…
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NCERT Solutions for Class 7 Maths Chapter 12 Algebraic Expressions NCERT Solutions for Class 7 Maths Chapter 12 Algebraic Expressions Exercise 12.1 Ex 12.1 Class 7 Maths Question 1. Get the algebraic expressions in the following cases using variables, constants and arithmetic operations: (i) Subtraction of z from y. (ii) One half of the sum…
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Perimeter and Area Class 7 Extra Questions Maths Chapter 11 Extra Questions for Class 7 Maths Chapter 11 Perimeter and Area Perimeter and Area Class 7 Extra Questions Very Short Answer Type Question 1. The side of a square is 2.5 cm. Find its perimeter and area. Solution: Side of the square = 2.5 cm…
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