Busy Ant Maths Pupil Book 4a Year 4 Answers - Collins Page 22
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33Progress Guide 4
Unit 6, Week 2: Number _ Fractions
Lesson 4, Extension: Temperature
Lesson 4, Support: Regular or irregular
Regular
Irregular
• All numbers from 20 to −20 marked on the
Lesson 1, Support: Make a number line
thermometer.
No answers
1 −7 degrees
Lesson 2, Support: Hundredths
2 −2 degrees
1 Missing hundredths fi lled in on grid
3 −17 degrees
24
2
of the grid coloured in
4 −6 degrees
100
76
3
5 −3 degrees
100
4 No answer
6 −3 degrees
Lesson 3, Extension: Hundredths and decimals
7 3 degrees
1 a 27.3
e 41.7
8 3 degrees
b 57.7
f 19.5
Unit 5, Week 2: Number _ Addition and
c 38.4
g 48.3
d 28.9
h 80.6
subtraction
2 Answers will vary.
Lesson 1, Support: Subtraction on a number
3 a 13.40
b 23.80
line
c 16.40
d 27.70
1 225
e 18.90
f 30.60
g 20.70
h 42.90
2 132
4 Answers will vary.
3 236
4 177
Lesson 4, Extension: How much water?
5 201
1
-
1
6
Lesson 4, Extension: Investigating regular
6 149
2 200 ml
polygons
3 Answers will vary.
Lesson 2, Extension: Lowest answer
3, 4
Answers will vary.
4 Answers will vary.
Number of equal sides 3 4 5 6 7 8 9 10
Lesson 3, Support: Change the 1s
Number of lines of
Unit 6, Week 3: Measurement (length)
3 4 5 6 7 8 9 10
symmetry
1 214
2 167
Lesson 1, Support: Kilometre dominoes
Unit 6, Week 1: Number _ Number and
No answers
3 226
place value
4 218
Lesson 3, Support: Rounding heights of plants
a, b
a 16.3 cm, 16 cm
Lesson 2, Support: Multiplication using the
5 229
b 15.5 cm, 16 cm
formal written method
6 327
c 20.4 cm, 20 cm
1 63#3 R 180 = 189
7 238
d 21.4 cm, 21 cm
2 68#5 R 350 = 340
e 34.1 cm, 34 cm
8 308
3 74#4 R 280 = 296
f 25 cm, 25 cm
9 319
4 49#9 R 450 = 441
g 19.3 cm, 19 cm
10 438
h 28.9 cm, 29 cm
5 65#7 R 490 = 455
j 27.2 cm, 27 cm
Lesson 4, Extension: Farm problems
6 77#9 R 720 = 693
j 31.6 cm, 32 cm
1 a 742 cows
7 48#6 R 300 = 288
k 29.7 cm, 30 cm
b Explanations will vary.
Lesson 3, Support: Multiplication using the
c Answers will vary.
Lesson 3, Extension: How high?
most effi cient method
2 a 647 chickens
1 800 m
a 63
f 79
b Explanations will vary.
2
b 516
g 768
c Answers will vary.
c 603
h 744
Number of
Height to which ball rises
d 86
i 84
Unit 5, Week 3: Geometry _ Properties
bounces
after bounce
e 96
j 0
1
400 m
of shape
2
200 m
Lesson 3, Extension: Multiplication using the
3
100 m
Lesson 1, Extension: Sets of angles
most effi cient method
4
50 m
No answers
a 23#2 = 46
5
25 m
b 47#1 = 47
Lesson 3, Support: Ordering pizza slices
6
12.5 m
c 76#9 = 684
1 acute angles: a, d, e, f
d 78#6 = 468
7
6.25 m
right angle: g
e 64#2 = 128
After 7th bounce
obtuse angles: b, c, h
f 11#6 = 66
3 After 9th bounce
2 f, a, d, e, g, b, c, h,
g 96#8 = 768
h 22#4 = 88
Lesson 4, Extension: Writing word problems
Answers will vary.
557
BA Answers_Final.indd 557
BA Answers_Final.indd 557
14/02/2014 16:37
14/02/2014 16:37
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