Q&A - PSLE Math

[StillThinking]

Does anyone realise the questions here mostly all can be solved by very simple algebra?

[ozora]

Could someone help in this question?
Thanks

[nicnac]

Could someone help in this question?
Thanks

[ozora]

Could someone help in this question?
Thanks

Thanks appreciate it

[doraemo]

hi , please help :

Maggie had some money at first . She spent t all in 3 stores. In each store, she spent $2 more than half of what she had when she entered.
a) How much did she spend at the last store?
b) How much did she have at first?

[tianzhu]

hi , please help :

Maggie had some money at first . She spent t all in 3 stores. In each store, she spent $2 more than half of what she had when she entered.
a) How much did she spend at the last store?
b) How much did she have at first?

Hi doraemo

Good Afternoon.

I'll just provide some guideline and leave it to your kid to work out the details. Use "Working Backwards"

"She spent all of her money in 3 stores." in place of "She spent t all in 3 stores."

Hope this helps.

Best wishes

[snowball]

3/4 of Cara's monthly allowance is equal to 6/7 of Lily's monthly allowance.
Both Cara and Lily spent the same amount each month. At the end of the month, Cara had four gimes as much money as Lily left.
They spent a total of $400 in a month.
(a) what fraction of Cara's monthly allowance was Lily's allowance
(b) How much was Cara's monthly allowance?
TIA

[BigDevil]

[ozora]

need some guide.
Mary had some beads. 2/5 of her beads were black and 1/10 of her beads were blue.
the remaining beads were red.
Mary used all her red beads to decorate some purse. The number of red beads used for each purse was 1/8 of the total number of beads. How many purses were decorated/
thanks

[tianzhu]

need some guide.
Mary had some beads. 2/5 of her beads were black and 1/10 of her beads were blue.
the remaining beads were red.
Mary used all her red beads to decorate some purse. The number of red beads used for each purse was 1/8 of the total number of beads. How many purses were decorated/
thanks

Hi ozora

Good Morning.

Please check your source for the last sentence.

For this question, use a common multiple of 40u (5, 10 and 8).

2/5 of her beads were black ----- 16u

1/10 of her beads were blue ----- 4u

The remaining beads were red ----- 20u

The number of red beads used for each purse was 1/8 of the total number of beads. ----- 5u

I am taking the question as number of purses decorated with red beads.

Number of purses decorated with red beads ----- 20/5 ----- 4.

The slide is meant to be a guide, I'll leave it to your kid to fill out the details.

Besides MD, you may also use solve this question using fractions.

1 – 2/5 -1/10 ----- 1/2

1/2 /1/8 ----- 4 (number of purses decorated with red beads )

Hope this helps.

Best wishes