Q&A - P4 Math

[smartmummy]

:hi5: champ! I also thought this way, but hesitated to post, not sure any special method exist or not.

I learnt from the step- by- step Book by Simon, there is an exercise find out the last digit of each product. So in this qn last digit of total is 8, have to findout multiply by which number gives the last digit 8 cos other number 10. So it can't be affect the last digit when we add.8*6=48, multiply by 6 both numbers and addup and check

[metz]

Champion:

jtparent:

Hi,


Pse assist.

Every morning, Mandy delivered 28 packets of potato chips while her sister delivered 10. If they delivered a total of 228 bags, how many were delivered by Mandy?

TIA

I like to try this question:-
28 x 6 = 168
10 x 6 = 60
Total = 228

So Mandy delivered 168 packets.

I do not know whether is this correct so experts please correct me if the answer is wrong :thankyou: :salute: :salute:

Another way is grouping the packets together.

All together, both sisters would deliver 28 +10 = 38 packets each morning.

Therefore for 228 packets, they would have delivered packets of potato chips for 228 /38 = 6 mornings. (assuming bags = packets, since no other info is given.)

Mandy would have delivered 28 x 6 = 168 packets.

[esj152104]

Hi,


Kindly assist to help in solving the below question.

If Lilian doubles her original sum of money, she willhave $212 more than Shafiq and three times as much as Mariam. If Shafiq and Mariam have the same amount of money, how much does Lilian have at first?

Thanks you :thankyou:

[jtparent]

Champion:

jtparent:

Hi,


Pse assist.

Every morning, Mandy delivered 28 packets of potato chips while her sister delivered 10. If they delivered a total of 228 bags, how many were delivered by Mandy?

TIA

I like to try this question:-
28 x 6 = 168
10 x 6 = 60
Total = 228

So Mandy delivered 168 packets.

I do not know whether is this correct so experts please correct me if the answer is wrong :thankyou: :salute: :salute:

tks!

[jtparent]

chamonix:

Champion:

[quote=\"jtparent\"]Hi,


Pse assist.

Every morning, Mandy delivered 28 packets of potato chips while her sister delivered 10. If they delivered a total of 228 bags, how many were delivered by Mandy?

TIA

I like to try this question:-
28 x 6 = 168
10 x 6 = 60
Total = 228

So Mandy delivered 168 packets.

I do not know whether is this correct so experts please correct me if the answer is wrong :thankyou: :salute: :salute:

Another way is grouping the packets together.

All together, both sisters would deliver 28 +10 = 38 packets each morning.

Therefore for 228 packets, they would have delivered packets of potato chips for 228 /38 = 6 mornings. (assuming bags = packets, since no other info is given.)

Mandy would have delivered 28 x 6 = 168 packets.[/quote]tks!

[711mum]

Appreciate if someone can assist with this question:


The sum of all the factors of 45 is the 3rd multiple of a number. What is the number?

TIA

[smartmummy]

711mum:

Appreciate if someone can assist with this question:


The sum of all the factors of 45 is the 3rd multiple of a number. What is the number?

TIA

Factors of 45 are 1,5,9and 45
1+5+9+45=60
60 is a 3rdmultiple of 20
TH

[711mum]

smartmummy:

711mum:

Appreciate if someone can assist with this question:


The sum of all the factors of 45 is the 3rd multiple of a number. What is the number?

TIA

Factors of 45 are 1,5,9and 45
1+5+9+45=60
60 is a 3rdmultiple of 20
TH

Hi Smartmummy,

Appreciate your effort but the answer is 26, I am stuck with the 2nd part...

[MathIzzzFun]

711mum:

smartmummy:

[quote=\"711mum\"]Appreciate if someone can assist with this question:


The sum of all the factors of 45 is the 3rd multiple of a number. What is the number?

TIA

Factors of 45 are 1,5,9and 45
1+5+9+45=60
60 is a 3rdmultiple of 20
TH

Hi Smartmummy,

Appreciate your effort but the answer is 26, I am stuck with the 2nd part...[/quote]hi

45 = 1 x 45 = 3 x 15 = 5 x 9
Sum of factors = 1 + 45 + 3 + 15 + 5 + 9 = 78
78 / 3 = 26

cheers.

[711mum]

:thankyou: