Singapore Primary Four Math - Problem Questions Revision
2
Name : ____________________
Date : _____________
Score : _____________
Write down your correct answer and
show your workings:
1) There are altogether
114 beans in bags A, B and C.
There are 8 more beans in bag A than B.
The number of beans in bag C is twice the total number of beans in bags
A and B.
How many more beans are there in bag C than B?
2) Salwa and Deva have
$187 altogether.
Deva and Jason have $173 altogether.
Salwa and Jason have $152 altogether.
How much money does Salwa have?
3) 3 handbags and 3
belts cost $1422
The cost of 1 belt is half the cost of 1 handbag.
Find the cost of 1 handbag.
4) Karen has $40 more
than Ali.
After Karen bought a dress for $180 and Ali bought a tennis racket for
$200,
Karen had twice the amount of money Ali had.
How much money did Karen have at first?
5) Gerrard has 208
stickers and Irene has 78 stickers.
How many stickers must Gerrard give to Irene so that they have the same
number of stickers?
Answers:
1) A 1u + 8
B 1u
C 1u
1u 1u 1u + 16
6u + 24 = 114
6u = 114 - 24 = 90
1u = 90 / 6 = 15
C - B (How
many more beans are there in bag C than B?)
4u - 1u + 16
3u x 15 +16
45 + 16 = 61
Notes:
(8 more beans in bag A than B so
A = 1u + 8)
bag C is twice the total number
of beans in bags A and B
(C = A and B x 2 so = 2u x 2 = 4u and 8 x 2 = 16 u)
2) (S)alwa and (D)eva
S + D -->
187 (1)
D + J
--> 173 (2)
S + J -->
152 (3)
2S + 2D + 2J -->
187+173+152 = 512 (4)
S + D + J --> 512
/ 2 = 256 (5)
S --> 256 - 173 =
83 (4) - (2)
Notes:
Finally, you minus D + J to get S.
3) 1422 / 9 = 158
158 x 2 = 316
The cost of 1 handbag
is $316
Notes:
The cost of 1 belt is half the
cost of 1 handbag. So 3 hangbag x 2 = 6 handbag.
Total = 6 (handbag) + 3 (belt)
= 9.
Finally, you need to multiply by
2 as original is still 1 hangbag.
4)
1u = 60
60 + 60 +
140 + 40 = 300
Karen have
300 at first.
Notes:
$180 - $40 = $140 (The amount bought for dress - difference)
As such:
1u = $200 - $140 = $60
Karen at first = $60 x 2 + $180 = $300
5) 208 - 78
130 / 2 =
65
Gerrard must
give Irene 65 stickers.
Notes:
(1) Deduct the differences.
Then divide by 2 to share equally.
208 - 65 = 143
78 + 65 = 143 |