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26×26 Mahmood's Math Magic Square

  Finding the pattern is  definitely a challenge

Factoring Trinomials – Henri’s Math Education Blog

A recent online conversation got me thinking about the factoring of trinomials. To start with, I would like to step back, and think about why...

Digital SAT Math Problems and Solutions (Part

Problem 1 :In the xy-plane, the line determined by the points (c, 11) and (-1, c) intersects the y-axisat y = 5. Which of...

Thinking like a mathematician – Wonder in Mathematics

What does it mean to think like a mathematician? We often emphasise the verbs of mathematical thinking, such as reasoning and problem solving, but...

Digital SAT Math Problems and Solutions (Part

Problem 1 : In the given figure, AC = CD. The measure of angle EBC is 45° and the measure of angle ACD is 104°....

Pre Calculus Problems and Solutions (Part

Problem 1 :Find the limit, if it existis. Solution : https://www.youtube.com/watch?v=34w4f5gPpls Problem 2 :What is the average rate of change of the function f(x) = x2 -...

Finding pi in the alphabet

Write the letters of the alphabet around a circle, then strike out the letters that are symmetrical about a vertical line. The remaining letters...

Digital SAT Math Problems and Solutions (Part 44)

Problem 1 :A cargo helicopter delivers only 100-pound packages and 120-pound packages. For each delivery trip, the helicopter must carry at least 10 packages,...

A couple more variations on an ancient theme

I’ve written a couple posts on the approximation by the Indian astronomer Aryabhata (476–550). The approximation is accurate for x in . The first post collected...

Pre Calculus Problems and Solutions (Part

Problem 1 :What does the Intermediate Value Theorem say about the function f(x) = x2 + x + 4 on the interval?A)  f(x) must...
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