Teacher Persis’ selection of Primary 6 math problems on speed with video solutions. This might challenge you a bit.

## Challenging Primary 6 Math Problems on Volume

11 JunTeacher Persis’ selection of Primary 6 math problems on volume with video solutions.

## Secondary Maths Classes in June

2 JunWe are opening maths revision sessions (and hopefully science…) this June holidays. Per session will be based on particular topics in the secondary maths syllabus with a *seat capacity of only* **3 or 4 **(*min. 2 pupils* to start a session). You may expect selected question analysis, concept elaboration and application in each session. Sec 4s can expect topical questions selected from prelim papers (it’s just 1-2 months before prelims). Do sign up early by arranging registration and payment with us before the sessions are occupied! A session of the same topic may be opened for sign up on another day in June (subjected to our tutors’ lesson schedule). For payment and registration, kindly send your enquiry to admin@matharena.com.sg and upon confirmation and verification through payment procedure, we will register for you and you can just come for the session(s) on the date(s) assigned.

**Disclaimer:** Below is the schedule of the revision session (accurate as at May 26). There will be updates every weekend so do save this link onto your phone (or any tech device) to keep up with the updates.

## Questions from Tina Tran (Fractions and Ratios)

23 AugQ1. In a school, the ratio of the number of teachers who wear spectacles to the number of teachers who do not wear spectacles is 11:5. 2/3 of the male teachers and 7/10 of the female teachers wear spectacles. What is the ratio of the number of male teachers to the number of female teachers?

Q2. Melissa had 3/4 as many coins as Sheryl. After Melissa and Sheryl received another 48 and 4 coins respectively, Melissa had 1/5 more coins than Sheryl. How many coins did Melissa have at first?

Please click the following link for suggested solutions: Questions from Tina Tran 28.02.13

## 2014 NMOS Special Round Training

11 Jul** **The top scorers of the Preliminary Round will be invited to sit for a written paper in the Special Round at NUS High School of Mathematics and Science on **26th July 2014 **(Saturday). The duration of the paper is 1h 30min and it consists of 20 questions (4 marks each for Q1-10, 5 marks each for Q11-20).

Some instructions useful to candidates of the Special Round:

1. Write your answers in the answer sheet provided and shade the appropriate bubbles below your answers.

2. No steps are needed to justify your answers.

3. No marks will be deducted for wrong answers.

4. Unanswered questions will not get any marks.

5. No calculators or mathematical instruments are allowed.

**Math Arena** will be conducting NMOS Special Round Training for pupils in the coming week.

**Venue: Math Arena**

(Tampines Street 45, Block 488B #B1-147, Singapore 521488) .

Bus 28 stop at Blk 489B.

Buses 28, 293 at Blk 489A.

Bus 29 stop at Dunman Secondary.

**Date: 14 Jul (Mon), 16 Jul (Wed), 21 Jul (Mon)**

**Time: 6.00 – 9.00 pm**

### Course Fee: $330

**This course will mainly cover selected high-order thinking skill questions from the following topics:**

1. Number Theory, Counting and Divisibility

2. Rate and Speed

3. Geometry

4. Fraction, Percentage and Ratio

**Our Opening Hours (School Term):**

Tuesday to Friday 3.30 pm to 9.00 pm

Saturday 9.00 am to 5.00 pm

Sunday 9.00 am to 4.00 pm

Closed on Public Holidays

Should you have any enquiry regarding time schedule or course registration, please feel free to call to speak to Lilian or Bosco at 6783 3218, 6781 9325 or 8121 6628, or simply email us at admin@matharena.com.sg.

## Question from Joelle

9 MayA factory manufactured 2620 ‘Small’, ‘Medium’ and ‘Large’ size T-shirts. The ratio of the number of ‘Medium’ size T-shirts to the number of ‘Small’ size T-shirts was 1 : 3. After of the ‘Small’ size T-shirts, of the ‘Large’ size T-shirts and none of the ‘Medium’ size T-shirts were sold, there were 1645 T-shirts left. How many ‘Small’ size T-shirts were there at first?

Please click the following link for suggested solution: Question from Joelle 09.05.14