Ans:
1– 3
2– 3
3– 4
4– 4
5– 1
6– 1
7– 2
8– 3
9– 3
10– 4
11– 400 000
12– 29
13– 4/25
14– $168
15– 2/3
16– 160 cm²
17– $44.80
18– See attached Qn 18
19– 7/11
20– 40 m
21– 25 boys
22– 264 cm / 2 m 64 cm
23– 30 cm²
24– 560 female fish
25– a -> 288 cards , b -> $192
26– $216
Ans:
1– 2
2– 4
3– 1
4– 3
5– 3
6– 4
7– 1
8– 4
9– 4
10– 4
11– 70
12– 101
13– 3
14– 2 pairs
15– ∠b
16– 1/12 kg
17– Andy
18– See attached Qn 18
19– 72
20– 900 lollipops
21– Darren -> 72 marbles , Javier -> 36 marbles
22– 160 kg
23– 37 children
24– a -> 42 men , b -> 252 commuters
25– 480 muffins and cupcakes
Ans:
1– 2
2– 3
3– 3
4– 3
5– 2
6– 1
7– 2
8– 3
9– 1
10– 2
11– $128
12– 25%
13– 3/8 , 7/12 , 5/6
14– 4 coins
15– 14 2/3 hours
16– 20%
17– 50 marbles
18– $63
19– $72
20– See attached Qn 20
21– 9 : 25
22– $40
23– 360 marbles
24– a -> 69 km/h , b -> 759 km
25– 500 stickers
26– a -> 248.40 cm , b -> 30π cm²
Ans:
1– 2
2– 3
3– 4
4– 1
5– 1
6– 3
7– 3
8– 4
9– 2
10– 1
11– 19
12– 28
13– 45
14– 1 : 6
15– $3.80
16– 31 years old
17– 65 cm²
18– $83
19– 875 cm²
20– 41 passengers
21– $994
22– 1581 pupils
23– $50
24– $12
25– a -> 216 pupils , b -> 120 girls
26– 1750 cm²
Ans:
1– 3
2– 3
3– 4
4– 3
5– 2
6– 4
7– 4
8– 2
9– 3
10– 4
11– 279
12– 3500
13– 3/7 and 5/11
14– 3 children
15– 14
16– See attached Qn 16
17– West
18– 7/18
19– 25 more fiction books
20– $3020
21– 84 sweets
22– 240 cm
23– 24 marbles
24– $1050
25– a -> 4 packets, b -> 16 buttons
Ans:
1– 1
2– 2
3– 3
4– 4
5– 3
6– 3
7– 1
8– 1
9– 1
10– 2
11– 7/9
12– 10 517
13– 15
14– See attached Qn14
15– 124
16– 120 more pupils
17– 210 pupils
18– 6 ways
19– $54
20– $16
21– 40 marbles
22– $49
23– $520
24– 2398 erasers
25– 1554 dresses
Tagged Maths, Primary 4, revision, Singapore, Worksheets
Ans:
1– 4 3/10 m
2– 36 pupils
3– $52
4– 7008 km
5– $270
6– $90
7– 1/3
8– $480
9– 75 marbles
10– 500 g
11– 32 seats
12– 27 passengers
13– 20 m
14– 3144 pens
Posted in April, Primary 4, Problem Sums
Tagged difficult, heuristic, Maths, Primary 4, problem solving, problem sums, revision, Singapore, word problems, Worksheets
Ans:
1– 2
2– 1
3– 2
4– 4
5– 2
6– 2
7– 4
8– 1
9– 4
10– 3
11– 0.28
12– 42
13– 400
14– 7/12 l
15– F
16– $3m
17– 35 112 cm³
18– 24 km/h
19– 4
20– 1
21– 11 kg
22– 17 days
23– a -> 1/12 , b -> 576 cm²
24– 70 coins
25– 75 km/h
26– $2400
Tagged Maths, problem solving, revision, Singapore, Worksheets
Ans:
1– 4
2– 3
3– 2
4– 3
5– 3
6– 2
7– 4
8– 4
9– 3
10– 3
11– 4
12– 23/7
13– 8549
14– 3 1/4 l
15– See attached Qn 15
16– 17 black balloons
17– $54
18– 1/4
19– 8 pupils
20– 1000 girls
21– 1210 children
22– $1260
23– $3158
24– $108
25– a -> 16 and 19 , b -> 31 matchsticks
Ans:
1– $420
2– 6.55 min
3– 35 years old
4– 50 red apples
5– 3 months
6– 18 days
7– $135
8– 125 girls
9– 25 purple balloons
10– 85 banana muffins
11– 275 stamps
12– 3 : 8
13– 2190 geese
14– 120 pages
15– $24
16– 42 balls
17– 110 pencils
18– a -> 1/3 , b -> 30 children
Posted in April, Primary 6, Problem Sums
Tagged difficult, heuristic, Maths, Paper 2, Primary 6, problem solving, problem sums, revision, Singapore, word problems, Worksheets
