Busy Ant Maths Pupil Book 4a Year 4 Answers - Collins Page 15
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33Pupil Book 4C
Lesson 4: Decimal problems
Challenge
Challenge
3
1 Answers will vary.
3
1 a 3.05
e 3.65
Challenge
1
1 Billy
Rosie
Stanley Poppy Julian
b 3.2
f 3.7
2 Answers will vary.
c 3.41
g 3.75
2 Number line drawn and these times in
Lesson 3: Ordering and subtracting money
d 3.52
h 3.88
the correct place on number line :
26.3
26.9
27.5
28.2
28.7
Challenge
1
Lesson 2: Comparing and rounding decimals
1 Answers will vary.
3 Billy 23.3 s
Poppy 25.2 s
2 a £4.70
c £8.40
Challenge
1
1 a 4.2
to
4.3
Rosie 23.9 s
Stanley 24.5 s
b £10.60
b 3.65
to
3.75
Julian 25.7 s
3 a £16.12
c £7.23
c 4.18
to
4.28
Challenge
b £21.36
2
1 Susie
Olly
Max
Monty
Jessie
d 7.1
to
7.2
e 5.53
to
5.63
2 Susie 43.25 kg
Max 41.95 kg
Challenge
2
1 Answers will vary.
f 7.26
to
7.36
Olly 43.05 kg
Jessie 39.67 kg
2 a £25.50
c £26.40
g 8.5
to
8.6
Monty 41.54 kg
b £33.80
h 9.41
to
9.51
3 Susie and Olly
i 11.3
to
12.3
3 a £27.20
c £26.36
Challenge
j 12.5
to
13.5
b £7.22
3
1 Yasmin £48
Maisha £49
Hussain £48
Mark £47
2 a 3
f 10
Challenge
3
1 Answers will vary.
Penny £49
b 4
g 13
2 Answers will vary.
c 8
h 12
2 Maisha and Penny
d 8
i 15
3 Answers will vary.
3 Yasmin £54.83, Maisha £56.03,
e 10
j 15
Hussain £55.28, Mark £54.24,
Lesson 4: Lunch problems
Challenge
Penny £55.96.
2
1 a 4.1
4.4
4.5
4.7
4.9
Challenges
1, 2, 3
Chris had granary roll with cheese.
b 6.08
6.18
6.48
6.87
6.88
Unit 11, Week 3: Geometry _ Position
Marsha had brown bread with beef
c 7.21
7.48
7.53
8.05
8.14 8.46
Joe had white bread with tuna
and direction
d 12.18
12.46
12.64
12.66
12.81 12.83
Challenges
e 16.01 16.11 16.16 16.61 16.66
2, 3
Chris paid £1.95
Lesson 1: Take off coordinates
f 18.3
18.4
18.7
19.1
19.5
Marsha paid £2.65
Challenge
Joe paid £2.43
1
2 a 13
1
B (1, 4) C (2, 3) D (2, 5)
13.4
14
Chris got 5p change.
b 18
18.2
19
2 a F (4, 0) and G (4, 3)
b H
Marsha got £2.35 change.
17
c 16
16.9
Challenges
Joe got £7.57 change.
d 11
2, 3
1 (0, 3) R (1, 3) R (3, 5) R (5, 5)
11.1
12
16
R (5, 3) R (3, 1) R (3, 0) R (0, 3)
e 15
15.7
Challenge
3
Answers will vary.
20
f 19
19.5
2
y
26
g 25
25.6
9
Unit 11, Week 2: Number _ Decimals
29
h 28
28.8
8
7
Challenge
Lesson 1: Decimal tenths and hundredths
3
1 Answers will vary.
6
Challenge
2 Answers will vary.
5
1
1 a 0.2
e 0.6
4
b 0.3
f 0.7
3 As Jasmine’s height is rounded to
3
c 0.4
g 0.8
1.4 m, her height could be as low as
2
d 0.5
h 0.9
1.35 m, 1.36 m, 1.37 m or 1.38 m
1
making her smaller than Jim.
37
26
2 a
= 0.37
d
= 0.26
x
0
100
100
0
1
2
3
4
5
6
7
8
9
82
74
b
= 0.82
e
= 0.74
Lesson 3: Dividing by 10 and 100
100
100
Challenge
3
1 a
23
y
c
= 0.23
Challenge
100
1
a 0.5
g 8.3
9
Challenge
b 0.9
h 9.1
8
2
1 a 0.7
e 0.71
c 0.8
i 4.7
7
b 0.5
f 0.12
d 0.2
j 6.4
6
c 0.3
g 0.63
e 2.8
k 9.1
5
d 0.9
h 0.58
f 5.1
l 7.6
4
4
3
–
–
2 a
e
10
10
3
Challenge
1
28
–
b
f
2
a 0.05
g 0.75
2
10
100
b 0.63
h 0.01
8
17
1
–
c
g
10
100
c 0.91
i 0.44
x
0
55
–
2
0
1
2
3
4
5
6
7
8
9
d
h
10
100
d 0.78
j 0.57
b (7, 4) (7, 2) (5, 3) (3, 2) (3, 4)
3
e 0.03
k 0.36
0.25
0.5
0.75
f 0.42
l 0.89
Challenge
25
5
75
–
3
1 a 4.8
f 17.3
100
10
100
b 0.95
g 2.84
1
1
3
c 0.3
h 30.1
-
-
-
4
2
4
d 0.64
i 48.4
e 2
2 and 3 Answers will vary.
550
BA Answers_Final.indd 550
BA Answers_Final.indd 550
14/02/2014 16:37
14/02/2014 16:37
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