MP Board Class 8th Maths Solutions Chapter 9 Algebraic Expressions and Identities Ex 9.4 Question 1. Multiply the binomials. (i) (2x + 5) and (4x – 3) (ii) (y – 8) and (3y – 4) (iii) (2.5l – 0.5 m) and (2.5l +0.5 m) (iv) (a + 3b) and (x + 5) (v) (2pq + … Read more
MP Board Class 8th Maths Solutions Chapter 9 Algebraic Expressions and Identities Ex 9.3 Question 1. Carry out the multiplication of the expressions in each of the following pairs. (i) 4p, q + r (ii) ab, a – b (iii) a + b, 7a2b2 (iv) a2 – 9, 4a (v) pq + qr + rp, … Read more
MP Board Class 8th Maths Solutions Chapter 9 Algebraic Expressions and Identities Ex 9.2 Question 1. Find the product of the following pairs of monomials. (i) 4, 7p (ii) -4p, 7p (iii) -4p, 7pq (iv) 4p3, -3p (v) 4p, 0 Solution: (i) 4 × 7p = 28p (ii) -4p × 7p = -28p (iii) -4p … Read more
MP Board Class 8th Maths Solutions Chapter 9 Algebraic Expressions and Identities Ex 9.1 Question 1. Identify the terms, their coefficients for each of the following expressions. (i) 5xyz2 – 3zy (ii) 1 + x + x2 (iii) 4x2y2 – 4x2y2z2 + z2 (iv) 3 – pq + qr – rp (v) (vi) 0.3a – … Read more
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.2 Question 1. Express the following numbers in standard form. (i) 0.0000000000085 (ii) 0.00000000000942 (iii) 6020000000000000 (iv) 0.00000000837 (v) 31860000000 Solution: (i) 0.0000000000085 = 8.5 × 10-12 (ii) 0.00000000000942 = 9.42 × 10-12 (iii) 6020000000000000 = 6.02 × 1015 (iv) 0.00000000837 = 8.37 … Read more
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 Question 1. Evaluate (i) 3-2 (ii) (-4)-2 (iii) Solution: Question 2. Simplify and express the result in power notation with positive exponent. Solution: Question 3. Find the value of (i) (30 + 4-1) × 22 (ii) (2-1 × 4-1) ÷ 2-2 (iii) … Read more
MP Board Class 8th Maths Solutions Chapter 11 Mensuration Ex 11.4 Question 1. Given a cylindrical tank, in which situation will you find surface area and in which situation volume. (a) To find how much it can hold. (b) Number of cement bags required to plaster it. (c) To find the number of smaller tanks … Read more
MP Board Class 8th Maths Solutions Chapter 16 संख्याओं के साथ खेलना Ex 16.2 प्रश्न 1. यदि 21y5, 9 का एक गुणज है, जहाँ y एक अंक है, तोy का मान क्या है? हल: क्योंकि 21y5, 9 का एक गुणज है। इसलिए अंकों का योग = 2 + 1 + y + 5 = 8 … Read more
MP Board Class 8th Maths Solutions Chapter 11 Mensuration Ex 11.3 Question 1. There are two cuboidal boxes as shown in the adjoining figure. Which box requires the lesser amount of material to make? Solution: Surface area of box (a) = 2(lb + bh + hl) = 2(60 × 40 + 40 × 50 + … Read more
MP Board Class 8th Maths Solutions Chapter 16 संख्याओं के साथ खेलना Intext Questions MP Board Class 8th Maths Chapter 16 पाठान्तर्गत प्रश्नोत्तर पाठ्य-पुस्तक पृष्ठ संख्या # 260 प्रयास कीजिए (क्रमांक 16.1) प्रश्न 1. निम्नलिखित संख्याओं को व्यापक रूप में लिखिए – 25 73 129 302 हल: 25 = 20 + 5 = 10 x … Read more
MP Board Class 8th Maths Solutions Chapter 11 Mensuration Ex 11.2 Question 1. The shape of the top surface of a table is a trapezium. Find its area if its parallel sides are 1 m and 1.2 m and perpendicular distance between them is 0.8 m. Solution: Area of trapezium Question 2. The area of … Read more
MP Board Class 8th Maths Solutions Chapter 15 आलेखों से परिचय Ex 15.3 प्रश्न 1. उपयुक्त पैमाने का प्रयोग करते हुए, निम्न तालिकाओं में दी गई राशियों के लिए आलेख बनाइए – (a) सेबों का मूल्य (b) कार द्वारा तय की गई दूरी 7:30 बजे प्रातः व 8 बजे प्रातः के अन्तराल में कार द्वारा … Read more
MP Board Class 8th Maths Solutions Chapter 11 Mensuration Ex 11.1 Question 1. A square and a rectangular field with measurements as given in the figure have the same perimeter. Which field has a larger area? Solution: We have, a square of side 60 m i. e., s = 60 m and a rectangle of … Read more
MP Board Class 8th Maths Solutions Chapter 15 आलेखों से परिचय Intext Questions MP Board Class 8th Maths Chapter 15 पाठान्तर्गत प्रश्नोत्तर पाठ्य-पुस्तक पृष्ठ संख्या # 253 सोचिए, चर्चा कीजिए और लिखिए प्रश्न 1. एक कार की पेट्रोल टंकी को भरने के लिए दी गई राशि खरीदे गए पेट्रोल की मात्रा (लीटर में) द्वारा निश्चित … Read more
MP Board Class 8th Maths Solutions Chapter 15 आलेखों से परिचय Ex 15.2 प्रश्न 1. निम्न बिन्दुओं को एक वर्गांकित कागज (Graph sheet) or sifona ariffiny zit Hilferu fata QRIT वे सभी एक सरल रेखा पर स्थित हैं? A (4, 0), B (4, 2), C (4, 6), D (4, 2.5) P(1, 1), Q (2, 2), … Read more