Selina solutions

Selina solutions

Selina solutions

Grade 6

CHAPTERS

1. Number System (Consolidating the Sense of Numberness)

3. Numbers in India and International System (With Comparison)

5. Natural Numbers and Whole Numbers (Including Patterns)

6. Negative Numbers and Integers

12. Proportion (Including Word Problems)

17. Idea of Speed, Distance and Time

18. Fundamental Concepts (Algebra)

19. Fundamental Operations (Related to Algebraic Expressions)

20. Substitution (Including Use of Brackets as Grouping Symbols)

21. Framing Algebraic Expressions (Including Evaluation)

22. Simple (Linear) Equations (Including Word Problems)

23. Fundamental Concepts (Geometry)

25. Properties of Angles and Lines (Including Parallel Lines)

26. Triangles (Including Types, Properties and Construction)

30. Revision Exercise on Symmetry (Including Constructions on Symmetry)

32. Perimeter and Area of Plane Figures

Q1) Consider two whole numbers a and b such that a is greater than b.

(i) Is a – b a whole number? Is this result always true?

(ii) b – a a whole number? Is this result always true?

Solution 1:

Let us take a as 2 and has 1

(i) a - b = 2 - 1 = 1,

Yes, a - b is a whole number and the result will always remain the same.

(ii) b - a = 1 - 2 = -1

No, a - b can never be a whole number. Yes the result always be true.

Still have questions? Our expert teachers can help you out

Book a free class nowNumber System (Consolidating the Sense of Numberness)

Numbers in India and International System (With Comparison)

Natural Numbers and Whole Numbers (Including Patterns)

Proportion (Including Word Problems)

Idea of Speed, Distance and Time

Fundamental Concepts (Algebra)

Fundamental Operations (Related to Algebraic Expressions)

Substitution (Including Use of Brackets as Grouping Symbols)

Framing Algebraic Expressions (Including Evaluation)

Simple (Linear) Equations (Including Word Problems)

Fundamental Concepts (Geometry)

Properties of Angles and Lines (Including Parallel Lines)

Triangles (Including Types, Properties and Construction)

Revision Exercise on Symmetry (Including Constructions on Symmetry)

Perimeter and Area of Plane Figures

Q1) Consider two whole numbers a and b such that a is greater than b.

(i) Is a – b a whole number? Is this result always true?

(ii) b – a a whole number? Is this result always true?

Solution 1:

Let us take a as 2 and has 1

(i) a - b = 2 - 1 = 1,

Yes, a - b is a whole number and the result will always remain the same.

(ii) b - a = 1 - 2 = -1

No, a - b can never be a whole number. Yes the result always be true.

Still have questions? Our expert teachers can help you out

Book a free class nowLido

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