Q&A - P3 Math

[Oldschool]

jolenekoh:

Appreciate for the help


Mr. Thomas placed a row of flowerpots alont the path from the gate to the door of his bungalow. There were 18 flowerpots alont the path. A flowerpot was placed at every 5 m. How long was the path from the gate to the door?



Thank you in advance

Hi,

I assume that the first pot start from the gate and the last pot end exactly at the door or vice versa.

Then the path is 17 x 5 = 85m.

This can be illustrated with a ruler to your kid.
e.g. Starting from 0 to 10cm, if the point is 1cm apart then there are a total of 11 points.

Regards

[Oldschool]

fann:

Hihi,

Can anyone help to solve this question?

The cost of a pen and a pencil is $2.50. The cost of 2 such pens is the same as the cost of 3 such pencils. What is the cost of 5 such pencils?

Hi,

Alternatively,

One set of (1 pen + 1 pencil) = $2.5

If I buy one more set of (1 pen + 1 pencil), it will be

(1 pen + 1 pencil) + (1 pen + 1 pencil) = $5

2 pens + 2 pencils = $5

Since 2 pens have the same cost as 3 pencils, then

3 pencils + 2 pencils = $5, or

5 pencils = $5

Regards

[fann]

Hi Signorwinter and Oldschool,

Thank you so much for the solution.

[fann]

Hi Signorwinter and Oldschool,

Thank you so much for the solution.

[crystal mom]

Hi!!

I need solution to the following maths problems:
1. \tAnne has five more 20 cents coins than 50 cents coins. The total amount of money she has is $4.50. How many of each coin does she have?
2. \tMrs Chan has some sweets to be given to her pupils.
If she gives each pupil 5 sweets, she will have 61 sweets left.
If she gives each pupil 8 sweets, she will need 2 more sweets.
How many pupils does Mrs Chan have ?

Thanks !!

[PapayaDad]

Anne has five more 20 cents coins than 50 cents coins. The total amount of money she has is $4.50. How many of each coin does she have?


1 x 50c and 6 x 20c = $1.70
2 x 50c and 7 x 20c = $2.40
3 x 50c and 8 x 20c = $3.10
4 x 50c and 9 x 20c = $3.80
5 x 50c and 10 x 20c = $4.50

[tianzhu]

crystal mom:

2. Mrs Chan has some sweets to be given to her pupils.

If she gives each pupil 5 sweets, she will have 61 sweets left.
If she gives each pupil 8 sweets, she will need 2 more sweets.
How many pupils does Mrs Chan have ?

Thanks !!

Hi

In order to give each pupil 3 more sweets (8-5), Mrs Chan needs 63 (61+2)sweets.

Number of pupils ------ 63/3 ------21

Best wishes

[tianzhu]

crystal mom:

Hi!!

I need solution to the following maths problems:
1. \tAnne has five more 20 cents coins than 50 cents coins. The total amount of money she has is $4.50. How many of each coin does she have?

Hi

Another way is to use the \"Grouping concept\"

For five 20 cents coins, we have$1.

4.5 – 1 – 3.5

Consider a set or group of 20 cents coin and 50 cents coins. This gives a total of 70 cents.

5 groups will give $3.50

Hence, we have

10 20 cents coins

5 50 cents coins

Best wishes

[jolenekoh]

Kate had 120 beads less than Connie. Connie had 230 beads left after giving 80 beads to Kate. How many beads did they have altogether?

[Maths Hub]

jolenekoh:

Kate had 120 beads less than Connie. Connie had 230 beads left after giving 80 beads to Kate. How many beads did they have altogether?

Beads at start:
Connie: 1 unit
Kate: 1 unit - 120

Beads in the end:
Connie 230 (after giving 80 to kate)

In order to find Connie at start, we add back 80.

230+80=310

Kate at start: 310 - 120 = 190

Total at start: 190 + 310 = 500

Hope that helps.