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Term 2 Algebra Two Marks Question

7th Standard EM

    Reg.No. :
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Maths

Time : 00:45:00 Hrs
Total Marks : 30
    15 x 2 = 30
  1. Express each of the following numbers using exponential form.
    512

  2. Express each of the following numbers using exponential form.
    343

  3. Simplify the following.
    52 ×104

  4. Find the value of the following.
    (−4)2

  5. Simplify using laws of exponents.
    3y ×12y

  6. Simplify using laws of exponents.
    256 × 56

  7. Find the unit digit of expanded form.
    1110

  8. Find the unit digit of expanded form.
    4615

  9. Find the degree of the following terms.
    −125

  10. Find the degree of the following terms.
    3z

  11. 62×6m = 65, find the value of ‘m’.

  12. Find the unit digit of 124128x126124.

  13. Find the value of w, given that x = 3 , y = 4 , z = −2 and w = x2 − y2 + z2 − xyz .

  14. Simplify and find the degree of 6x2 + 1 - [8x - {3x2 - 7 - (4x2 - 2x + 5x + 9)}]

  15. The two adjacent sides of a rectangle are 2x2 − 5xy + 3z2 and 4xy − x2 − z2 . Find the perimeter and the degree of the expression.

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