## Return

Return to say “Thank You” to “God” Who alone is the Source of all Good Things.

## Congratulations TeamMathics

*I received a nice message from Mr. Lee Eming (Ex-Brainbuilder & currently TeamMathics’ General Manager) regarding the KMC training materials I developed for their use during my time with them (for Pre-Ecolier, Ecolier & Benjamin categories): Thank you sir for your kind acknowledgement; it was a “team effort”.

## Primary 3 Singapore Maths Example 2

Question: Mr. Tan has 216 apples and pears altogether. He packed all the apples and pears into 30 bags. He packed the apples in bags of 6 and the pears in bags of 8. (a) How many bags of apples did he have? (b) How many apples did he have altogether? *The original question...

## Primary 3 Singapore Maths Example 1

Question: Jolene had 138 fewer marbles than Clarissa at first. Then, Jolene received 29 marbles from Clarissa and bought another 25 marbles. How many fewer marbles did Jolene have than Clarissa in the end? *The original question & solution involving the “model drawing technique” is presented in the images below

## The Missing Dollar?

Question I saw a shirt, which cost $97. I borrowed $50 from mom, and $50 from dad. I bought the shirt, with $3 of change. I gave $1 back to mom, $1 back to dad, and kept the other $1 myself. Now this means I owe my mom $49 and my dad the same,...

## Picture Math

Please try to solve the question in the picture involving three fruits which represents numbers accordingly. Solution . . . . . . . . . . . . . . Try first . . . . . . . . . . . . . . . . . . . ....

## Puzzle Time – House Building

If five people can build five houses in five days, how many days does it take 100 people to build 100 houses? Solution The statement “five people can build five houses in five days” Is equivalent to (keep the “time of 5 days fixed” to arrive at this): “A person can build a house...

## A Triangle Geometry Challenge

Please refer to the question in picture (Find the value of x; two full solutions given too). ✌

## KMC 2015 Cadet No. 24

Question: Yesterday I wrote down my friend Ekin’s telephone number. The telephone number on my note has six digits, but I remember that Ekin said that the number had seven digits. I have no idea what digit I forgot to write down, or its position in the number. How many different telephone numbers...

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