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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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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NCERT Solutions for Class 7 Maths Chapter 11 Perimeter and Area Ex 11.4 NCERT Solutions for Class 7 Maths Chapter 11 Perimeter and Area Exercise 11.4 Ex 11.4 Class 7 Maths Question 1. A garden is 90 m long and 75 m broad. A path 5 m wide is to be built outside and around…
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NCERT Solutions for Class 7 Maths Chapter 11 Perimeter and Area Ex 11.3 NCERT Solutions for Class 7 Maths Chapter 11 Perimeter and Area Exercise 11.3 Ex 11.3 Class 7 Maths Question 1. Find the circumference of the circles with the following radius. (Take π =\(\frac{22}{7}\)) (a) 14 cm (b) 28 mm (c) 21 cm…
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NCERT Solutions for Class 7 Maths Chapter 11 Perimeter and Area Ex 11.2 NCERT Solutions for Class 7 Maths Chapter 11 Perimeter and Area Exercise 11.2 Ex 11.2 Class 7 Maths Question 1. Find the area of each of the following parallelograms: Solution: (a) Area of the parallelogram = base × altitude = 7 cm…
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