## Search found 60 matches

- Tue Sep 08, 2015 10:32 pm
- Forum: Primary 6 & PSLE
- Topic: Q&A - PSLE Math
- Replies:
**17002** - Views:
**2297369**

### Re: Q&A - PSLE Math

http://i57.tinypic.com/2mmzrrs.jpg a) perimeter = circumference of small circle (see top+bottom) + curcumference of mid-sized circle (see left+right) + circumference of largest circle (see inside circle) = 6pi + 8pi + 10pi = 24pi cm b) similarly, shaded area = small circle + mid-sized circle + rect...

- Tue Sep 08, 2015 7:52 pm
- Forum: Primary 6 & PSLE
- Topic: Q&A - PSLE Math
- Replies:
**17002** - Views:
**2297369**

### Re: Q&A - PSLE Math

http://i58.tinypic.com/2ujmbsm.jpg Please help. Thank you. a) Diagonal QS bisects the right angle. Angle x = 45-19 = 26 deg b) Triangle RST is an isosceles triangle with angles 26 deg, 77 deg and 77deg. Angle QRT = 90-77 = 13 deg Angle y = 360-225-13-90 (Angle sum of quadrilateral TRQP) --> NB: doe...

- Tue Sep 08, 2015 7:37 pm
- Forum: Primary 6 & PSLE
- Topic: Q&A - PSLE Math
- Replies:
**17002** - Views:
**2297369**

### Re: Q&A - PSLE Math

http://i58.tinypic.com/1zb9phz.jpg Please help. Thank you. G may look like midpoint of DC but it may not be. It doesn't matter. Looking at triangle AGC (base of GC), child needs to imagine and understand that as vertex A moves along AB to B, area of triangle AGC is still the same (same base GC, sam...

- Tue Sep 08, 2015 2:25 pm
- Forum: Primary 4
- Topic: Q&A - P4 Math
- Replies:
**2654** - Views:
**351367**

### Re: Q&A - P4 Math

Hi, can anyone kindly help me on the below two questions. Thank you. http://i60.tinypic.com/6qfgog.jpg Another one as below: http://i61.tinypic.com/9sh4lk.jpg Hi. Alternative presentation with models if kid has not learned solving equations yet. Hope it helps. (Edit: final answer for q1 is $420, so...

- Sat Jun 27, 2015 1:00 pm
- Forum: Primary 6 & PSLE
- Topic: Q&A - PSLE Math
- Replies:
**17002** - Views:
**2297369**

### Re: Q&A - PSLE Math

Area of A is 36 sq cm and Perimeter is 14x4 + 8x2 = 72 cm (helpful if child sees the perimeter this way). Good one! Your kid taking psle too? Thanks! Yes, my kid ("and I too") taking PSLE. Have learnt a lot from many parents here. :) If the math working is too complex for a P6, it probably is too c...

- Sat Jun 27, 2015 8:42 am
- Forum: Primary 6 & PSLE
- Topic: Q&A - PSLE Math
- Replies:
**17002** - Views:
**2297369**

### Re: Q&A - PSLE Math

The figure consists of 3 squares. The total area of the figure is 296cm2. Assuming that all the length of the squares are in whole numbers, find (a) The area of the smallest square (b) The perimeter of the figure http://i61.tinypic.com/2j2urex.png please help ...:?: http://i60.tinypic.com/349fhp1.j...

- Fri Jun 26, 2015 8:38 am
- Forum: Primary 6 & PSLE
- Topic: Q&A - PSLE Math
- Replies:
**17002** - Views:
**2297369**

### Re: Q&A - PSLE Math

Yup I understand now. Thanks, Swift Formula.Swift Formula wrote:(100% - something) refers to the empty space beside the bar, compared to 100%

So we find all the empty space of all the bars except last 1.

Take the last bar minus all the empty space = x% (Do note if x is negative, take x to be 0)

)

- Thu Jun 25, 2015 10:49 pm
- Forum: Primary 6 & PSLE
- Topic: Q&A - PSLE Math
- Replies:
**17002** - Views:
**2297369**

### Re: Q&A - PSLE Math

Circle intersecting for 3 still ok but i still feel it can get complicated. As the number rises, it's impossible to draw 5 or 10 circles. Bars are more simple for students to understand since students learn model + units since young. Because model + units are the easiest way to present the question...

- Thu Jun 25, 2015 2:35 pm
- Forum: Primary 6 & PSLE
- Topic: Q&A - PSLE Math
- Replies:
**17002** - Views:
**2297369**

### Re: Q&A - PSLE Math

In a primary school, 75% of the pupils plays badminton, 70% play basketball and 65% play tennis. Given that at least x% of the pupils play all three games, find the value of x. Please help me. Thanks :) It's easier to understand by drawing a Venn Diagram with 3 intersecting circles. Else can go by ...

- Wed Mar 25, 2015 8:21 pm
- Forum: Primary 6 & PSLE
- Topic: Q&A - PSLE Math
- Replies:
**17002** - Views:
**2297369**

### Re: Q&A - PSLE Math

Please help on this question. Appreciated deeply! Thanks in advance! Mrs Amos baked 30 more chocolate cookies than almond cookies.After selling 2/5 of the chocolate cookies and 3/4 of the almond cookies, she had 39 more chocolate cookies than almond cookies left. How many chocolate cookies did she ...