### Dealing with Distance Problems: Overtaking & Meet With

Equipped with our basic equation for distance-time relationship, we know that distance = speed x time. There are a couple of things you need to take note when dealing with…

### Word Problem Set 3

Problem: At the beginning of a bicycle ride, Jose and Wally are 30 miles apart. If they leave at the same time and ride in the same direction, Jose overtakes…

### Word Problem Set 2

Problem: Alvin bought 4 magazines at \$3.60 each and a storybook for \$8.60. Lionel spent \$7 more than Alvin. He bought comics at \$1.50. How much did Alvin spend? How…

### Word Problem Set 1

Problem A nylon string is cut into 3 pieces. Two pieces are of the same length. The third piece is twice as long as each of the other two pieces.…

### Extracting Square Roots by Babylonian Method

I’ve came across an interesting way of extracting square roots using just pencil and paper. As far as I could remember, I haven’t encountered this method (nor any other method)…

### Star Problem: Ratio of girls and boys in a class

Problem: There are 40 pupils in a class. Each girl is given 5 books and each boy is given 3 books. The girls have 128 more books than the boys.…

### Star Problem: Work Rate – Painting Job

Problem: A worker can finish the painting job in 15 days. Another worker can finish only 75% of that job for the same time. At first, the second worker painted…

### Division using Napier’s Bones

On the previous post, we’ve learn the fun way of using Napier’s Bones to solve multiplication. Now, we will try to use Napier’s Bones to solve division problems.  The process might…

### Multiplication with Napier’s Bones

I’ve came across a cool way of doing multiplication. It is a method of multiplying large numbers using a grid or lattice layout, wherein it is somewhat similar to a…

### Expressing Roman Numerals to Hindu-Arabic System and vice-versa

The Roman Numeral System is an old numeration system that we still used today, you can find some on buildings, clocks and books. I will outline the approach I used…