Ans:
1– $36
2– 12 p.m.
3– $(10 – 3n)
4– 3 19/27%
5– 25 pears
6– 15 towels
7– 80 jugs
8– $3.75
9– 49.68 cm
10– a -> 90 km/h , b -> 11.42 a.m.
11– 600 apples and oranges
12– $100
13– 480 pupils
14– 1260 goldfish and swordtail
15– $120
16– a -> 44 km/h , b -> 1 hour
17– a -> 9 : 8 : 2 , b -> 5/7
18– 1200 pots of orchids
Posted in Primary 6, Problem Sums, May
Tagged Primary 6, problem sums, Singapore, word problems, problem solving, heuristic, difficult, Worksheets, Paper 2, Maths
Ans:
1– 1
2– 2
3– 4
4– 1
5– 2
6– 3
7– 2
8– 4
9– 1
10– 4
11– 20
12– 25 cm
13– $(57 – 3x)
14– 1125
15– 15°
16– Page 159
17– 980 cm³
18– 07 40
19– (24.25 π +6) cm
20– 1537.5 m
21– 36 more adults
22– 72 sweets
23– $6750
24– Yellow -> 136 , Red -> 34
25– a -> 40 km , b -> 1.30 p.m.
26– 280 cupcakes
Tagged difficult, heuristic, Maths, May, Paper 2, Primary 6, problem solving, problem sums, Singapore, word problems, Worksheets
Ans:
1– Becky -> $48.80 , Celine -> $24.40 , Diana -> $12.20
2– 54 cakes
3– 765
4– 27 girls
5– (200 -2m) ¢
6– 196 pages
7– 336 fruits
8– 25 minutes
9– 44 chicken burgers
10– 42 green markers
11– 140 children
12– $16.50
13– 102 local stamps
14– 10.05 a.m.
15– Team A -> 100 members , Team B -> 70 members
16– 1640 spectators
17– $23
18– a -> 3 : 20 , b -> 56 girls
Posted in Primary 6, Problem Sums
Tagged difficult, free exam papers, Maths, Paper 2, Primary 6, problem solving, problem sums, Singapore, word problems, Worksheets
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– $58
2– 490 vehicles
3– 7 : 9
4– 3/32 m²
5– $450
6– 1110 marbles
7– $2
8– 203 plants
9– $18
10– 41.6 kg
11– 128 cm²
12– $430
13– 175 kg
14– $121
15– a -> 6 cm² , b -> 3/8
16– a -> $330 , b -> $178
17– 10 : 9
18– a -> $108 , b -> 10 children
Posted in May, Primary 5, Problem Sums
Tagged difficult, heuristic, Maths, Paper 2, Primary 5, problem solving, problem sums, Singapore, word problems, Worksheets
Ans:
1– $1392
2– 11/35
3– 160 people
4– 320 beads
5– $54
6– 36 toys
7– Catherine -> $408 , Wendy -> $232
8– 100 apples left
9– $15 630
10– 8 sweets
11– 240 chickens
12– 84 marks
13– 31 boxes
14– $104
Posted in Maths, May, Primary 4, Problem Sums
Tagged difficult, heuristic, Maths, Primary 4, problem solving, problem sums, Singapore, word problems, Worksheets
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
