Find two numbers based on sum, difference, product, and quotient

Learn with an example

👉 The product of two numbers is 100, and their sum is 20.

What are the two numbers?

​ ___and ___

  • Think of pairs of numbers whose product is 100. Then find the sum of each pair.
  • The numbers are 10 and 10.

👉 The quotient of two numbers is 8, and their difference is 7.

What are the two numbers?

​____ and  ___

  • Think of pairs of numbers whose quotient is 8. Then find the difference of each pair.
  • The numbers are 8 and 1.

👉 The product of two numbers is 18, and their sum is 11.

What are the two numbers?

​ ____and____

  • Think of pairs of numbers whose product is 18. Then find the sum of each pair.
ProductSum
18 x 1 = 1818+1 = 19
9 x 2 = 189+2 = 11
6 x 3 = 186+3 = 9
  • The numbers are 9 and 2.

Let’s practice!🖋️