NCERT Class 7 Mathematics Solutions: Chapter 12 –Algebraic Expressions Exercise 12.3 Part 1

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Given arithmetic expression with example

Given Arithmetic Expression

Given arithmetic expression with example

1. If , find the value of:

(i)

(ii)

(iii)

(iv)

(v)

Answer:

(i)

[Putting ]

(ii)

[Putting ]

(iii)

[Putting ]

(iv)

[Putting ]

(v)

[Putting ]

2. If , find the value of:

(i)

(ii)

(iii)

Answer:

(i)

[Putting ]

(ii)

[Putting ]

(iii)

[Putting ]