CTET and State TET Maths – Practice “What should be subtracted from?” questions

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In this lesson, we are going to practice few “What should be subtracted from?” questions.

Almost every CTET question paper has questions like this.

Previous Year Questions:

Question #1 What number should be subtracted from the product 1109 × 505 so as to get 505050?

[Mathematics] [CTET-2014-09]
Options
  • 49495
  • 55005
  • 54995 correct answer
  • 59495
Answer Explanation Number = 1109 × 505 – 505050
= 560045 – 505050
= 54995
Question #2 What should be subtracted from the product 102 x 201 to get 19999?

[Mathematics] [CTET-2015-02]
Options
  • 602
  • 103
  • 401
  • 503 correct answer
Answer Explanation 102 x 201 = 20502
subtract 19999 from 20502 to get 503.
Question #3 What should be subtracted from the product 3001× 101 to get 300311?

[Mathematics] [CTET-2014-02]
Options
  • 2790 correct answer
  • 2090
  • 2970
  • 270
Question #4 What should be subtracted from -5/7 to get −1?

[Mathematics] [CTET-2014-09]
Options
  • -2 / 7
  • 4 / 7
  • 2 / 7 correct answer
  • -4 / 7
Question #5 The hundreds digit of a three-digit number is 7 more than the units digit. The digits of the number are reversed, and the resulting number is subtracted from the original three-digit number. The units digit of the final number so obtained is

[Mathematics] [CTET-2014-09]
Options
  • 0
  • 1
  • 2
  • 3 correct answer
Question #6 The number n is doubled and then y is added to it. The result is then divided by 2 and the original number n is subtracted from it. The final result is

[Mathematics] [CTET-2014-02]
Options
  • y
  • y/2 correct answer
  • n + y
  • (n + y)/2
Question #7 What should be subtracted from (-5/7) to get (-2/3)?

[Mathematics] [CTET-2015-02]
Options
  • 29/21
  • -29/21
  • 1/21
  • -1/21 correct answer
Answer Explanation Subtract (-2/3) from (-5/7)

=> (-5/7) -(-2/3)

=> 2/3 – 5/7

=> (14 – 15)/21

=> -1/21