Colin Goh
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

P5 thks

Replies 2
Shaoyang Brandon

Hi! Ali would have a final difference of 198 +20 - 60 = 158 Since Ali has $158 more than his sister, AND he has twice as much as his sister, Multiply the difference by 2 to get Ali's amount in the end. 158 x 2 = 316 Because Ali receives $20 from his mother, subtract $20 from $316 to get his amount at first. $316 - $20 = $296 :)

6 years ago
Izam Marwasi

atFirst Ali->2u-20 Sister-> 1u-60 (2u-20)=198+1u-60 2u-20=138+1u 1u= 158 Ali had 2u-20 at first. -> 2×158-20= 316-20=296(answer)

6 years ago

Maya Tharangani
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Measurement

P5 Qn. TIA!

Replies 1
Shaoyang Brandon

(a) 20 divides the length of the 3 ropes with no remainder. So, the cut pieces will be 20 cm each. (b) 4, 7 and 9 pieces can be cut for the 80 cm, 140 cm and 180 cm respectively.

6 years ago

Jaja Bernales
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Hi, pls help with this P5 problem.. I am getting the same answer but it was marked incorrect. Appreciate the help..

Replies 3
Rudi Berera

you have to take the number of cars as variable, say x and write the number of vans and lorries as a function of x

6 years ago
Rudi Berera

if you solve it you get ncars=272, nlorries=22, nvans=144

6 years ago
Shaoyang Brandon

Number of cars is 271. You got it right. Check with the teacher to find out why 271 is not correct.

6 years ago

Marissa Goh
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Mary and Ron had a total of $338. After Mary saved $49 more and Ron spent half of his money, they both had the same amount of money. How much did Mary have at first?Pls help with this P5 qn ☝ TIA

Replies 3
Raymond Ng

6 years ago
Shaoyang Brandon

Hi! Refer to the image for the solution. :)

6 years ago
Shaoyang Brandon

In addition, here is a similar set of questions you can use in the link below. :) http://kosongmath.com/2016/01/12/mary-and-ron-had-a-total-of-338-question-solution-extended-practice/

6 years ago
Shaoyang Brandon

In addition, here is a similar set of questions you can use in the link below. :) http://kosongmath.com/2016/01/12/mary-and-ron-had-a-total-of-338-question-solution-extended-practice/

6 years ago

Maya Tharangani
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

P5 Qn. TIA!

Replies 1
Roses Myna

69÷3=23 23×4=92 92×2=184

6 years ago

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