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ICSE ICSE Class 6 - CISCE Question Bank Solutions for Mathematics

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Mathematics
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Simplify:

3x + (8x − 5x) − (7x − x)

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

a − (a − b − c)

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

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Simplify:

6a2 + (2a2 − a2) − (a2 − b2)

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

2m − (3m + 2n − 6n)

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

− m − n − (− m) − m

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

x + y − (x + `overline("y"-"x"))`

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

25y − (5x − 10y + 6x − 3y)

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

`3"x"+(2"x"-overline("x"+2))`

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

`"a"-(2"a"-overline(4"a"+3"a"))`

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

`5"x"^2-(3"x"-overline("x"^2-4))`

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

− (y − x) − (x + y − `overline(2"x"+"y")`)

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

x − (y − z) + x + (y − z) + y − (z + x)

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

x − [y + {x − (y + x)}]

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

4x + 3 (2x − 5y)

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

2 (3a − b) − 5 (a − 3b)

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

p + 2 (q − r − p)

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

`"a"−[−{−(a−overline("b"-"c"))}]`

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

3x − [5y − {6y + 2 (10y − x)}]

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Simplify:

`5{"a"^2-"a"("a"-overline("a"-2))}`

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined

Fill in the blank:

2a + b − c = 2a + (.............)

[20] Substitution (Including Use of Brackets as Grouping Symbols)
Chapter: [20] Substitution (Including Use of Brackets as Grouping Symbols)
Concept: undefined >> undefined
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