Q&A - PSLE Math

[mathnoobs]

tianzhu:

mathnoobs:

actually, I just realized that the student can write any numerical answer and it will still be right. Am I right to say this ?

Hi

No, not any numerical values.

Based on the question as in part (a) in the P6 thread, the answers can be any values satisfying this condition.

\"The difference in original prices between ABC and XYZ is 45\".

Best wishes

yes, I agree. Since they're asking for the discounted price, then any number greater than 38.25 will be correct.

[Bookwrappers]

Can someone answer this question?


7 ____ 7 ____2 ___ 7 = 5

Fill in blanks with +, -, x or /.

[MathIzzzFun]

Bookwrappers:

Can someone answer this question?


7 ____ 7 ____2 ___ 7 = 5

Fill in blanks with +, -, x or /.

-, x, ÷

cheers

[Bookwrappers]

MathIzzzFun:

Bookwrappers:

Can someone answer this question?


7 ____ 7 ____2 ___ 7 = 5

Fill in blanks with +, -, x or /.

-, x, ÷

cheers

Thks thks. I waited for reply and thought nobody responding to me.

[lotto]

Bookwrappers:

MathIzzzFun:

[quote=\"Bookwrappers\"]Can someone answer this question?


7 ____ 7 ____2 ___ 7 = 5

Fill in blanks with +, -, x or /.

-, x, ÷

cheers

Thks thks. I waited for reply and thought nobody responding to me.[/quote]If u ask your question here, i don't think u can expect people to reply u that fast leh.
Btw will this type of question come out in the PSLE?

[Laura02]

MathIzzzFun:

Bookwrappers:

Can someone answer this question?


7 ____ 7 ____2 ___ 7 = 5

Fill in blanks with +, -, x or /.

-, x, ÷

cheers

If I give the answer as +, -, - will it also be marked as correct?

[dazzlego]

Laura02:

MathIzzzFun:

[quote=\"Bookwrappers\"]Can someone answer this question?


7 ____ 7 ____2 ___ 7 = 5

Fill in blanks with +, -, x or /.

-, x, ÷

cheers

If I give the answer as +, -, - will it also be marked as correct?[/quote]Yes, it is correct!
Unless the question states you can't use the same operation more than once

[superhappy]

Hi, pls help ;

1. 3/5 of Albert’s money is equal to 1/4 of Bernard’s money. The difference in Albert’s and Bernard’s money is equal to 1/2 of Caleb’s money. If Caleb has $210, what is the total amount of money the three boys have?

Thanks!

[weatherbee]

Need to draw the model but I don’t know how to draw here to show you. Basically, make the numerator the same. So 1/4 = 3/12. Albert has 5 units in total and Bernard has 12 units. Their difference is 12-5=7. Since 7 is 1/2 of what Caleb has, therefore Caleb has 14 units. So,


14 units —> $210
1 unit —> $210/14 = $15
Total: 31 units
31 units —> $15 X 31 = $465

[superhappy]

weatherbee:

Need to draw the model but I don't know how to draw here to show you. Basically, make the numerator the same. So 1/4 = 3/12. Albert has 5 units in total and Bernard has 12 units. Their difference is 12-5=7. Since 7 is 1/2 of what Caleb has, therefore Caleb has 14 units. So,


14 units ---> $210
1 unit ---> $210/14 = $15
Total: 31 units
31 units ---> $15 X 31 = $465

Oh.. Thanks!
I get it now after drawing the model.