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Gyaan Maths
CBSE · Class 6-10
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CBSE Maths · Class 6

Chapter 2: Whole Numbers

Name: ________________________
Date: ______________
Marks: ____ / 10

Predecessor, successor; representation on a number line; properties of addition, subtraction, multiplication and division.

Questions

  1. Successor and predecessor of 10001000.
  2. Simplify: 54279×92+8×5427954279 \times 92 + 8 \times 54279.
  3. Represent 66 on a number line and show 6+36 + 3.
  4. Successor of 999999999999.
  5. Predecessor of 1000010000.
  6. Verify: 12×(7+3)=12×7+12×312\times (7+3) = 12\times 7 + 12\times 3.
  7. Is 00 a whole number?
  8. Simplify (15+25)×2(15 + 25) \times 2.
  9. Which is the additive identity?
  10. Is subtraction commutative? Example.

Extra Practice (Optional)

  • Are all natural numbers whole numbers?
  • Find the product 4×1768×254 \times 1768 \times 25.
  • Is 00 a natural number?

Answer Key (For Teachers)

  1. Answer: 10011001 and 999999.
    Working: 1000+11000 + 1; 1000−11000 - 1.
  2. Answer: 54279005427900.
    Working: Take 5427954279 common. → =54279×100= 54279 \times 100.
  3. Answer: Lands on 99.
    Working: Mark 66, jump 33 units to the right.
  4. Answer: 10000001000000
    Working: Add 11.
  5. Answer: 99999999
    Working: Subtract 11.
  6. Answer: Verified.
    Working: LHS =12×10=120= 12\times 10 = 120; RHS =84+36=120= 84 + 36 = 120.
  7. Answer: Yes.
    Working: Whole numbers start from 00.
  8. Answer: 8080
    Working: Bracket first.
  9. Answer: 00
    Working: Adding it leaves the number unchanged.
  10. Answer: No.
    Working: 7−3=47-3 = 4 but 3−7=−43-7 = -4.
Gyaan Maths · CBSE Class 6 · Chapter 2
Gyaan Maths — CBSE Class 6-10, built for board-toppers.
v1.1 · Feb 2026