Busy Ant Maths Pupil Book 4a Year 4 Answers - Collins Page 10
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33Pupil Book 4B
Unit 8, Week 1: Number _ Multiplication
2 a 9:00 a.m.
b 1:00 p.m.
Challenge
2
1
and division
3 a between 11:00 a.m. and 12:00 noon
Sports activities
b between 2:00 p.m. and 3:00 p.m.
40
Lesson 1: Multiplication HTO$O using
4 between 11:00 a.m. and 3:00 p.m
partitioning
Challenge
3
1 a Temperature rose by 9 °C from
30
Challenge
1
1a 14
b 140
c 1400
16 °C at 10:30 a.m. to 25 °C at
2a 32
b 320
c 3200
12:00 noon and then fell by 8 °C to
20
17 °C at 1:00 p.m.
3a 28
b 280
c 2800
b 24 °C
4a 54
b 540
c 5400
10
5a 49
b 490
c 4900
Lesson 3: Football pictograms and bar charts
6a 72
b 720
c 7200
Challenge
0
1
1
Challenge
2
a 999
d 688
Distance
Number of players
b 486
e 828
20 m
5
Activity
c 1288
f 1866
25 m
10
2 a Swimming
b Badminton
30 m
15
Challenge
3
a 2000
1868
f 4900
4837
3 a 5 people
b 20 people
35 m
12
b 3000
2808
g 3500
3420
4 20 people
40 m
8
c 2800
2952
h 6400
6352
Challenge
2 30 m
d 1200
1149
i 7200
7335
3
a Weeks 1–2: Ran 5 miles per week.
e 2700
2403
j 4800
4872
3 a 15 players
b 20 players
Weeks 3-6: Increased by 5 miles per
week to 25 miles in week 6.
4 50 players
Lesson 2: Multiplication HTO$O using
b Reasons will vary. They may include
partitioning and the grid method
Challenge
2
1
possible illness, injury, holiday or
Challenge
other reasons.
Player
Number of goals
1
a
400 O 476 R
500
b
700 O 753 R
800
Angela
11
Lesson 2: School time graphs
c
100
O 138 R
200
Ashrif
17
Challenge
d
800
O 832 R
900
1
1
Jackie
16
Classroom temperatures
e
200
O 216 R
300
Jordan
22
f
900
O 911 R 1000
Simon
14
g
600 O 694 R
22
700
2 a Jordan b 6
c 38
d 8
h
300 O 374 R
400
21
e 8
f 80
i
500 O 585 R
600
20
Challenge
j
O 647 R
700
600
3
Answers will vary.
19
Challenge
2
Answers will vary.
18
Lesson 4: Holiday in Orlando
17
Challenge
Challenge
3
1
Three of answers are 1872 but 732#2 =
1 a 18 °C
b 19 °C
16
1464.
2 a 21 °C
b 22 °C
Lesson 3: Multiplication HTO$O using the
3 between 4 and 5 hours into fl ight
expanded written method
4 3 °C
Challenge
5 23 °C
1
a 25, 50, 75, 100, 125, 150, 175, 200,
Time
225, 250, 275, 300
Challenge
2 a 1:00 p.m.
b 9:00 a.m.
2
1
b 40, 80, 120, 160, 200, 240, 280,
3 11:00 a.m. and 12:00 noon
Time (minutes)
Petrol (litres)
320, 360, 400, 440, 480
0
60
4 1:00 p.m.
c 60, 120, 180, 240, 300, 360, 420,
20
56
480, 540, 600, 660, 720
Challenge
2
1
Outside temperatures
d 80, 160, 240, 320, 400, 480, 560,
40
52
15
640, 720, 800, 880, 960
60
48
e 90, 180, 270, 360, 450, 540, 630,
80
42
14
720, 810, 900, 990, 1080
100
42
13
120
36
Challenge
12
2
1 a 900
e 2500
2 a 48 litres
b 36 litres
11
b 2800
f 7200
3 24 litres
c 6300
g 4800
10
d 6000
h 3500
4 80 min
9
2 a 1038
e 2740
Challenge
8
3
1 a between Monday and Tuesday
b 2692
f 7104
7
b between Wednesday and Thursday
c 6588
g 5176
6
d 5916
h 3735
2 The temperature fell from 26 °C on
Thursday to 21 °C on Friday before
Challenge
3
Answers may vary but could include: e is
rising to 25 °C on Saturday.
the odd one out because it is divisible by
10; h is the odd one out because its
answer is odd not even.
Time
545
BA Answers_Final.indd 545
BA Answers_Final.indd 545
14/02/2014 16:37
14/02/2014 16:37
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