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Selina ICSE Solutions for Class 7 Mathematics Physics Chemistry Biology

Selina Concise Mathematics Class 7 ICSE Solutions Selina Concise ICSE Solutions for Class 7 Mathematics UNIT 1 : NUMBER SYSTEM 1. Integers 2. Rational Numbers 3. Fractions (Including Problems) 4. Decimal Fractions (Decimals) 5. Exponents (Including Laws of Exponents) UNIT 2 : COMMERCIAL ARITHMETIC 6. Ratio and Proportion (Including Sharing in a Ratio) 7. Unitary Method (Including Time and Work) 8. Percent and Percentage 9. Profit, Loss and Discount 10. Simple Interest UNIT 3 : ALGEBRA 11. Fundamental Concepts (Including Fundamental Operations) 12. Simple Linear Equations (Including Word Problems) 13. Set Concepts (Some Simple Divisions by Vedic Method) UNIT 4 : GEOMETRY 14. Lines and Angles (Including Construction of angles) 15. Triangles 16. Pythagoras Theorem 17. Symmetry (Including Reflection and Rotation) 18. Recognition of Solids (Representing 3-D in 2-D) 19. Congruency: Congruent Triangles 20. Mensuration UNIT 5 : DATA HANDLING (Statistics)

Selina Concise Physics Class 7 ICSE Solutions Selina Concise Physics Class 7 ICSE Solutions 1. Physical Quantities and Measurement 2. Motion 3. Energy 4. Light Energy 5. Heat 6. Sound 7. Electricity and Magnetism More  Resources for Selina Concise Class 7 ICSE Solutions Selina Concise Mathematics Class 7 ICSE Solutions   Selina Concise Chemistry Class 7 ICSE Solutions Selina Concise Biology Class 7 ICSE Solutions Selina Concise Physics Class 7 ICSE Solutions

Selina Concise Chemistry Class 7 ICSE Solutions Selina Concise ICSE Solutions for Class 7 Chemistry 1. Matter and Its Composition 2. Physical and Chemical Changes 3. Elements, Compounds and Mixtures 4. Atoms, Molecules and Radicals 5. Language of Chemistry 6. Metals and Non-metals 7. Air and Atmosphere More  Resources for Selina Concise Class 7 ICSE Solutions Selina Concise Mathematics Class 7 ICSE Solutions   Selina Concise Physics Class 7 ICSE Solutions Selina Concise Biology Class 7 ICSE Solutions Selina Concise Chemistry Class 7 ICSE Solutions

Selina Concise Biology Class 7 ICSE Solutions Selina Concise ICSE Solutions for Class 7 Biology Unit 1 — Tissue 1. Plant And Animal Tissues 2. Classification of Plants 3. Classification of Animals Unit 2 — Plant Life 4. Photosynthesis and Respiration Unit 3 — Human Body 5. Excretion in Humans 6. Nervous System 7. Allergy More  Resources for Selina Concise Class 7 ICSE Solutions Selina Concise Mathematics Class 7 ICSE Solutions   Selina Concise Physics Class 7 ICSE Solutions Selina Concise Chemistry Class 7 ICSE Solutions Selina Concise Biology Class 7 ICSE Solutions

Selina Concise Mathematics Class 7 ICSE Solutions Chapter 1 Integers Selina Publishers Concise Mathematics Class 7 ICSE Solutions Chapter 1 Integers Integers Exercise 1A – Selina Concise Mathematics Class 7 ICSE Solutions Question 1. Evaluate: 1. 427 x 8 + 2 x 427 2. 394 x 12 + 394 x (-2) 3. 558 x 27 + 3 x 558 Solution: 1. 427 x 8 + 2 x 427 = 427 x (8 + 2) (Distributive property)        = 427 x 10        = 4270 2. 394 x 12 + 394 x (-2) = 394 x (12-2) (Distributive property)        = 394 x 10        = 3940 3. 558 x 27 + 3 x 558 = 558 x (27 + 3) (Distributive property)        = 558 x 30        = 16740 Question 2. Evaluate: 1. 673 x 9 + 673 2. 1925 x 101 – 1925 Solution: 1. 673 x 9 + 673 = 673 x (9 + 1) (Distributive property) = 673 x 10 = 6730 2. 1925 x 101 – 1925 = 1925 x (101 – 1) (Distributive property) = 1925 x 100 = 192500 Question 3. Verify: 1. 37 x {8 +(-3)} = 37 x 8 + 37 x – (3) 2. (-82) x {(-4) + 19} = (-82) x (-4) + (-82) x 19 3. {7 – (-7)} x 7 = 7 x 7 – (-7) x 7 4

Selina Concise Mathematics Class 7 ICSE Solutions Chapter 2 Rational Numbers Selina Concise Mathematics Class 7 ICSE Solutions Chapter 2 Rational Numbers Selina Publishers Concise Mathematics Class 7 ICSE Solutions Chapter 2 Rational Numbers EXERCISE 2 (A) Question 1. Write down a rational number whose numerator is the largest number of two digits and denominator is the smallest number of four digits. Solution: Largest two digit = 99 Smallest, number of four digit = 1000 Now numerator = 99 and denominator = 1000 ∴ Rational number =    Question 2. Write the numerator of each of the following rational numbers:   Solution:     Question 3. Write the denominator of each of the following rational numbers:   Solution:   Question 4. Write down a rational number numerator (-5) x (-4) and denominator (28 – 27) x (8 – 5). Solution:   Question 5.   Solution:   Question 6. Separate positive and negative rational numbers from the following :   Solution:     Question 7. Find three rational numbers eq