Q&A - P4 Math

[smartmummy]

Sharmum:

Hi,


Can anyone help, have a few questions to solve n not sure of the answers. :?:

Question 1:
A notebook cost $3 and a comic book costs $5. If John spends all his money on buying notebooks, he has $6 left. If he spends all money on comic books, he need another $8. How much money does he have?

multiple of 3 6 9 12
+6 12 15 18
multiple of 5 10 15 20
-8 2 7 12
ans :$12

[smartmummy]

Sharmum:

Question 2

If each family member gets 5 oranges, there will be 3 oranges left. If each family member gets 7 oranges, there will be a shortage of 7 oranges.

a) How many members are there in the family
b) How many oranges are there in the carton?

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[Jamesbond]

Sharmum:

Question 3:

On a river cruise, the boat can only take 3 passengers. 16 will not get onto the boat. If the boat can take only 5 passengers, 2 passengers will not get onto the boat.

a) How many boats are there?
b) How many passengers are there?

Let me try...
a) 16-2=14
5-3=2
14/2=7

b)7*3=21
21+16=37
or
7*5+2=37

[Jamesbond]

Sharmum:

Question 4:

Libby read her story book from pg 3 to pg 9 on Monday.
a) How many pages did she read?
b) If she continues to read from pg 10 to pg 98 on Tuesday, how many pages did she read in all from Monday to Tuesday?

a) 9-3=6

b) For tue
98-10= 88
Altogether --- 88+6=94.

[Jamesbond]

Sharmum:

Question 5:


Two clocks were adjusted to chime at different timings. Clock A Chimes every 2 hours and clock B chimes every 3 hrs. If on the first day after adjustment, both clocks chimed at 1am, how many times in total will they chime together in the following 3 days?

Is it 12 or 15...the ans...I doubt..

I think 12...

[Jamesbond]

Sharmum:

Question 6:

The number of apples in a box is between 40 and 90. If Betty put these apples into bags of 7, 4 apples would remain. If she put these apples into bags of 8, 3 apples would remain. Find the total number of apples in the box.

I am seeing stars with all these questions.....appreciate if someone can help. :?:

:thankyou:

Multiples of 7(+4) above 40 ..less than 90

46,53,60,67,74,81,88

Multiples of 8 (+3) above 40...less than 90

43,51,59,67,75,83

67 is common....so ans is 67 apples..

Can somebody pl tell me whether this ques can be solved by using excess shortage method. If so pl solve for me....I can learn the method...Thx.

[smartmummy]

Jamesbond:

Sharmum:

Question 4:

Libby read her story book from pg 3 to pg 9 on Monday.
a) How many pages did she read?
b) If she continues to read from pg 10 to pg 98 on Tuesday, how many pages did she read in all from Monday to Tuesday?

a) 9-3=6

b) For tue
98-10= 88
Altogether --- 88+6=94.

sorry to interrupt...
when we count manually from 3 to 9 we get 7
that means 9-3+1=7
so this way 98-10+1=89
total 96?

[Sharmum]

Hi Smartmummy n Jamesbond,


:thankyou:

Else, I really have no ideas what's the solutions cos its different from what I learnt last time.

Questions 1-6 are all question from excess n shortage - whole numbers.

[Jamesbond]

smartmummy:

Jamesbond:

[quote=\"Sharmum\"]Question 4:

Libby read her story book from pg 3 to pg 9 on Monday.
a) How many pages did she read?
b) If she continues to read from pg 10 to pg 98 on Tuesday, how many pages did she read in all from Monday to Tuesday?

a) 9-3=6

b) For tue
98-10= 88
Altogether --- 88+6=94.

sorry to interrupt...
when we count manually from 3 to 9 we get 7
that means 9-3+1=7
so this way 98-10+1=89
total 96?[/quote] :slapshead: Oops...I just overlooked....careless....Yes u r right. :imsorry:

[Jamesbond]

Sharmum:

Hi Smartmummy n Jamesbond,


:thankyou:

Else, I really have no ideas what's the solutions cos its different from what I learnt last time.

Questions 1-6 are all question from excess n shortage - whole numbers.

Sharmum...Can u pl help me do excess shortage method for last sum...apples sum...