Ans:
1– tenths
2– tenths
3– a -> 5.634 , b- > 1.212 , c -> 1.314
4:
a — 0.25 , 0.254 , 0.42
b– 26.721, 27.261 , 27.621
c– 0.571, 0.715 , 0.751
5:
a — 0.6
b — 0.8
c — 0.2
d — 1.7
e — 1.3
f — 2.6
6:
a — 1/2
b — 1 3/10
c — 1 21/25
d — 4 6/25
e — 45 4/5
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 Primary 6, Problem Sums, May
Tagged Primary 6, problem sums, Singapore, word problems, problem solving, heuristic, difficult, Worksheets, Paper 2
Ans:
1– 1
2– 2
3– 2
4– 2
5– 3
6– 2
7– 4
8– 1
9– 3
10– 2
11– 1 1/10
12– Four million, three hundred and twenty-eight thousand, six hundred and seventeen
13– 4
14– 98 cm²
15– 1/5
16– 4/5 , 5/6 , 6/7 , 8/9 , 10/11
17– 1 : 2
18– $1987.20
19– 35¢
20– 240 stickers
21– $4350
22– $125
23– 148 files
24– 49 men
25– a -> 120 books , 26 -> 120 books
26– a -> 64 m , b -> $4992
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– 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
