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

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