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ICSE ICSE Class 7 - CISCE Question Bank Solutions for Mathematics

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Mathematics
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Subtract – 5a2 – 3a + 1 from the sum of 4a2 + 3 – 8a and 9a – 7. 

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

By how much does 8x3 – 6x2 + 9x – 10 exceed 4x3 + 2x2 + 7x -3? 

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

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What must be added to 2a3 + 5a – a2 – 6 to get a2 – a – a3 + 1?

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

What must be subtracted from a2 + b2 + lab to get – 4ab + 2b2

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

Find the excess of 4m2 + 4n2 + 4p2 over m2+ 3n2 – 5p

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

By how much is 3x3 – 2x2y + xy2 -y3 less than 4x3 – 3x2y – 7xy2 +2y3 

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

Subtract the sum of 3a2 – 2a + 5 and a2 – 5a – 7 from the sum of 5a2 -9a + 3 and 2a – a2 – 1 

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

The perimeter of a rectangle is 28x3+ 16x2 + 8x + 4. One of its sides is 8x2 + 4x. Find the other side 

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

The perimeter of a triangle is 14a2 + 20a + 13. Two of its sides are 3a2 + 5a + 1 and a2 + 10a – 6. Find its third side. 

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

If x = 4a2 + b2 - 6ab; y = 3b2 - 2a2 + 8ab and z = 6a2 + 8b2 - 6ab find: x + y + z

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

If x = 4a2 + b2 - 6ab; y = 3b2 - 2a2 + 8ab and z = 6a2 + 8b2 - 6ab find: x - y - z

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

If m = 9x2 - 4xy + 5y2 and n = - 3x2 + 2xy - y2 find: 2m - n

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

If m = 9x2 - 4xy + 5y2 and n = - 3x2 + 2xy - y2 find: m + 2n

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

If m = 9x2 - 4xy + 5y2 and n = - 3x2 + 2xy - y2 find: m - 3n

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

Simplify: 3x + 5(2x + 6) - 7x

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

Simplify: 3(4y - 10)  2(y - 1)

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

Simplify: - (7 + 6x) - 7(x + 2)

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

Simplify: x - (x - y) - y - (y - x)

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

Simplify: 4x + 7y - (5y - 8) - 2x

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined

Simplify: - 2m + 5 + 4(m - 3)

[3.01] Fundamental Concepts (Including Fundamental Operations)
Chapter: [3.01] Fundamental Concepts (Including Fundamental Operations)
Concept: undefined >> undefined
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