Trick Description

Have you ever noticed that the product of two numbers both having "5" as the last digit of their numbers, always end up with "25" or "75" as the last two digits of the answers?

In this module, you will learn the techniques on how to efficiently calculate the product of (X5) and (Y5), for example, 65 x 75, 85 x 25, 355 x 575, (55)², etc.

The module will provide you with an explanation on how the techniques were derived, their limitations, usage examples as well as some advance application techniques which the tricks can be used to help you solve problems faster!

• Prerequisites:
  • High school level maths knowledge
• Duration:
  • 40 mins (estimated time to complete excluding exercises)
• Subscription Prices:
  • 1 Month - AUD$30
    AUD$  to ANGARSAUDBGNBHDBNDBOBBRLBWPCADCHFCLPCNYCOPCSDCZKDKKEEKEGPEURFJDGBPHKDHNLHRKHUFIDRILSINRISKJPYKRWKWDKZTLKRLTLMADMURMXNMYRNOKNPRNZDOMRPENPHPPKRPLNQARRONRUBSARSEKSGDSITSKKTHBTRYTTDTWDUAHUSDVEBZAR   

  • Sign up for Product of (X5) and (Y5) now!

• Recommendation:
  • Learners of high school level and above who wants to improve their problem solving maths skills for exams and competitions

*All online transactions are handled in Australian dollars. Prices in other currencies are shown as a guide only. See more details.