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NCERT · Class 3 · Maths

Chapter 2: Fun with Numbers

Practice each question, then open the answer or worked solution.

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JUMPING ANIMALS

2 questions
Q1Written answer

Gabru, Bunny and Tarru are jumping all the way.

Gabru jumps on every 7th box, Bunny on every 5th box, and Tarru on every 4th box.

Gabru starts jumping from number 90.

Bunny starts jumping from number 99.

Tarru starts jumping from number 106.

  1. Bunny’s tenth jump is on number ______.
  2. Tarru’s tenth jump is on number ______.
  3. Gabru’s tenth jump will be on number ______.
  4. Both Gabru and Bunny jump on numbers 104, ______, and ______.
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Worked solution
    1. Bunny’s tenth jump is on: 99 + (10 x 5) = 99 + 50 = 149

Class 3 Maths - Chapter 2 - 5

  1. Tarru’s tenth jump is on: 106 + (10 x 4) = 106 + 40 = 146

Class 3 Maths - Chapter 2 - 6

  1. Gabru’s tenth jump will be on: 90 + (10 x 7) = 90 + 70 = 160

Class 3 Maths - Chapter 2 - 7

  1. Gabru and Bunny both jump on numbers 104, 139 and 174.

Class 3 Maths - Chapter 2 - 8

Q2Written answer

Find out:

  1. Tarru and Bunny jump on numbers ______, ______, and ______.
  2. Is there any number where both of them jump? ______
  3. Guess who will finish in the least jumps? ______ In how many jumps? ______

 

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Worked solution
  1. Tarru and Bunny jump on numbers 114, 134, and 174.

Class 3 Maths - Chapter 2 - 9

  1. Yes, both Tarru and Bunny jump on 174.

Bunny: 99, 104, 109, 114, 119, 124, 129, 134, 139, 144, 149, 154, 159, 164, 169, 174

Tarru: 106, 110, 114, 118, 122, 126, 130, 134, 138, 142, 146, 150, 154, 158, 162, 166, 170, 174

Gabru: 90, 97, 104, 111, 118, 125, 132, 139, 146, 153, 160, 167, 174

  1. Gabru will finish in the least jumps. In 12 jumps.

CLASS JUMP

Question:

Fill in the blanks

Jump 2 steps forward:

104, 106, 108, 110, 112, 114, 116.

Jump 2 steps backward:

262, 260, 258, 256, 254, 252, 250.

Jump 10 steps forward:

110, 120, 130, 140, 150, 160, 170.

Jump 10 steps backward:

200, 190, 180, 170, 160, 150, 140.

Continue the pattern:

550, 560, 570, 580, 590, 600, 610.

910, 920, 930, 940, 950, 960, 970, 980.

209, 207, 205, 203, 201, 199, 197.

401, 402, 403, 404, 405, 406, 407.