Ans:
1– 25%
2– 105 beads
3– $6.30
4– 81 teachers
5– 22 years’ time
6– 1 h 20 min
7– 5 boxes
8– 49 apples
9– 30.96 cm²
10– 35 red marbles
11– 24 girls
12– 16 min
13– 336 more ice cream
14– 3/17
15– Carla -> 336 stickers , Deanna -> 448 stickers
16– 171 marbles
17– 60 shells
18– a -> 54 l , b -> 7.5 cm
Posted in May, Primary 6, Problem Sums
Tagged difficult, heuristic, Paper 2, Primary 6, problem solving, problem sums, Singapore, word problems, Worksheets
Ans:
1– $72
2– 48 marbles
3– 72 puppets
4– $177
5– $3275
6– a- > 400 stamps , b -> 480 stamps
7– $24
8– 144 guppies
9– 63 sweets
10– 200 children
11– $50
12– a -> 6 years’ time , b -> 11 years’ time
13– $720
14– 150 books
15– $300
Posted in Primary 4, Problem Sums
Tagged difficult, heuristic, Maths, Primary 4, problem solving, problem sums, Singapore, word problems
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 May, Primary 6, Problem Sums
Tagged difficult, heuristic, Maths, 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– $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– 46 cubes
2– $300
3– 270 more apples
4– 98 cm
5– 28 chickens
6– 28 local stamps
7– $28
8– 30 blue pens
9– 95 fiction books
10– $868
11– 79 km/h
12– 227 km
13– $420
14– a -> $1560 , b -> 46.2%
15– a -> 35 red marbles , b -> 40%
16– 9.12 a.m.
17– 180 stickers
18– 23.4 l
Posted in May, Primary 6, Problem Sums
Tagged difficult, heuristic, Maths, Paper 2, Primary 6, problem solving, problem sums, Singapore, word problems, Worksheets
Ans:
1– 275 ribbons
2– 910 stamps
3– 1 1/8 l
4– $204
5– 56 stamps
6– 5 kg
7– a -> $334 , b -> $2672
8– 8 1/5 m
9– 3400 stickers
10– $100
11– 620 pupils
12– 403 stamps
13– 92 pens
14– a -> 4 kg , b -> $47
Posted in May, Primary 4, Problem Sums
Tagged difficult, heuristic, Maths, Primary 4, problem solving, problem sums, Singapore, word problems, Worksheets
Ans:
1– 210 more stamps
2– 38 square cards
3– 9 faces
4– 39°
5– 28n cm
6– 435 mobile phones
7– $144
8– 150 3/7 l
9– a -> $7.20 , b -> $66.60
10– a -> 4600 , b -> 9151
11– 1100 ml
12– 25 buttons
13– $4068
14– $540
15– 14 l
16– $548.10
17– a -> 198 cans , b -> 2 cans
18– 125 sweets
Posted in Primary 6, Problem Sums
Tagged difficult, heuristic, Maths, May, Paper 2, Primary 6, problem solving, problem sums, Singapore, word problems, 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
