Mathematics Class Exercises - Number Problems
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Questions and Answers

In a two-digit number, the digits are reversed, and the difference between the new number and the original number is 36. What is the difference between the digits of the original number?

  • 27
  • 36
  • 18
  • 9 (correct)
  • A student was asked to multiply a number by 23. However, the student multiplied the number by 32 instead, resulting in an answer that was 63 more than the correct answer. What is the number?

  • 21
  • 7 (correct)
  • 9
  • 14
  • When the digits of a two-digit number are reversed, the sum of the new number and the original number is 132. What is the sum of the digits of the original number?

  • 12
  • 10
  • 9
  • 11 (correct)
  • How many zeros are there in the product of all positive integers from 1 to 110?

    <p>26 (D)</p> Signup and view all the answers

    A two-digit number is reversed, and the sum of the reversed number and the original number is 165. What is the sum of the digits of the original number?

    <p>11 (C)</p> Signup and view all the answers

    Study Notes

    Question 5

    • A student was asked to multiply a number by 23
    • Instead, the student multiplied by 32
    • The result was 63 more than the correct answer
    • Find the original number

    Question 6

    • A two-digit number has its digits reversed
    • The new number has a sum of digits of 66
    • Find the sum of digits of the original number

    Question 7

    • A two-digit number has its digits reversed
    • The difference between the digits of the new number is 36
    • Find the difference between the digits of the original number

    Question 8

    • Find the number of zeros when all numbers from 1 to 110 are multiplied together
    • The product of an even number and 5 equals zero

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    Description

    This quiz focuses on various number problems commonly encountered in mathematics class. From multiplication errors to reversing digits, each question challenges students to think critically and apply their mathematical skills. Perfect for honing problem-solving abilities in a classroom setting.

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