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]
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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]
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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]
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Question #4 | What should be subtracted from -5/7 to get −1?
[Mathematics] [CTET-2014-09]
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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]
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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]
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Question #7 | What should be subtracted from (-5/7) to get (-2/3)?
[Mathematics] [CTET-2015-02]
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Answer Explanation | Subtract (-2/3) from (-5/7)
=> (-5/7) -(-2/3) => 2/3 – 5/7 => (14 – 15)/21 => -1/21 |