## Search found 21 matches

Sun Oct 12, 2008 1:39 pm
Forum: Primary 3
Topic: Q&A - P3 Math
Replies: 2984
Views: 554762

### Re: i got a problem that i can't solve, can any one help?

Ali , JIm and Beng shared some stickers in the ratio 3:2:4. In a game ,jim lost half of his stickers to ali .after the game, ali have 96 more stickers than beng. how many sticker did ali have after the game. Hi, Question may not be correct. At first , Ali had 3 units Jim had 2 units Beng had 4 unit...
Sun Oct 12, 2008 1:32 pm
Forum: Primary 3
Topic: Q&A - P3 Math
Replies: 2984
Views: 554762
okay when i read your post last night i still didn't get it... this morning a little better... thanks! Hi, Hope the model drawing illustrates the solution better. Very clear. It must have took you sometime to draw the models. MayI know what software you used to draw the models? Hi, Not any special ...
Thu Oct 09, 2008 8:58 pm
Forum: Primary 3
Topic: Q&A - P3 Math
Replies: 2984
Views: 554762
mckenzy wrote:okay when i read your post last night i still didn't get it... this morning a little better...

thanks!
Hi,
Hope the model drawing illustrates the solution better.

Tue Oct 07, 2008 9:40 am
Forum: Primary 6 & PSLE
Topic: Q&A - PSLE Math
Replies: 17002
Views: 2184232
Solve by model : -------------------- Boys : 12u + 20 Girls : 12u 1/4 boys did not come -> 3u + 5 (you can break 20 into 4 parts, each part is 5) 1/3 girls did not come -> 4u 7u + 5 = 19 1u = 2 Altogether -> 24u + 20 = 48+20 = 68. is this the Q47? Hi raysusan, I don't think so. Q47 should be a 5-ma...
Fri Sep 26, 2008 8:43 pm
Forum: Primary 6 & PSLE
Topic: Q&A - PSLE Math
Replies: 17002
Views: 2184232
For the above question 1 - for step 1 why 12 + 24? I don't understand the first step, the rest ok. Pls explain to me. Thanks. i solved it the ratio way though. 13: 8 = 39 : 24 1:8 = 15:120 So, 39 x 2 = 78 24/2 = 12 total = 78 + 12 = 90 Compare the orange bar (13 small units) to the bar consists of ...
Fri Sep 26, 2008 8:32 pm
Forum: Primary 6 & PSLE
Topic: Q&A - PSLE Math
Replies: 17002
Views: 2184232
Priskhipo, may I know if you are a teacher or tuition teacher? Your answers are so professional. Do you take students? :) :wink: Hi heutistmeintag, Thanks you. I'm a teacher but not in the mainstream kind. Sorry, I'm not taking in any students for tuition. I'm glad to be able to help out in this we...
Tue Sep 23, 2008 10:21 pm
Forum: Primary 6 & PSLE
Topic: Q&A - PSLE Math
Replies: 17002
Views: 2184232
HI Sarah,

The 3 questions share similar strategy.

Sun Sep 14, 2008 10:38 pm
Forum: Primary 6 & PSLE
Topic: Q&A - PSLE Math
Replies: 17002
Views: 2184232
Thanks, Priskhipo. Could you elaborate on the 2nd part pls? Hi heutistmeintag, Referring to Model representing White Balls : 1 Part + 50 in 1st scenario = 3 units in 2nd scenario because it says for every 3 white balls & 1 red ball are removed each time till no white ball left. Therefore all of the...
Sun Sep 14, 2008 3:27 pm
Forum: Primary 6 & PSLE
Topic: Q&A - PSLE Math
Replies: 17002
Views: 2184232
ok, I need help on this P6 problem. No simultaneous equations pls. :) There are several red balls and white balls on the table. If 1 red ball and 1 white ball are removed together each time until no red balls are left on the table, then the number of remaining white balls is 50. if 1 red ball and 3...
Sun Sep 14, 2008 2:44 pm
Forum: Primary 6 & PSLE
Topic: Q&A - PSLE Math
Replies: 17002
Views: 2184232
...But it is not possible for the area of 4 squares to be 80 cm2 if the perimeter of the rectangle is 20 cm... Yes, we will not be able to find the answer if we attempt to first find the values of x and y, the sides of the original rectangle, ie. x + y = 10 x^2 + y^2 = 40 => x^2 + (10 - x)^2 = 40 =...