The video below in mixed Tagalog and English is a tutorial on techniques in subtracting fractions and whole numbers (and vice versa). It discusses the “borrowing technique” which does not need to convert mixed fractions to improper fractions in order to perform the calculation. This technique will save you a lot of time and will lessen the probability of error during calculation.
This video is part of my collection of tagalog or Taglish math tutorials in Sipnayan.com. I believe that Sipnayan will be very useful for elementary school and high school students, so you can share the blog with them.