Page 220 - ICSE Math 4

(a) Litchi and Mango (c) 0 1 2 0 1 2 0 1 2
(b) 10 friends (c) 4 friends (d)
(d) 29 friends (e) 97 friends
×2 +3 ×2 +3 ×2 +3
3. (a) 14,200 fl owers (b) 1,000 fl owers 3. (a)
(c) B; E (d) 7,100 fl owers
4 8 11 22 25 50 53
(e) 5,800 fl owers Pa ern is ×2 and +3.
Exercise 13.2 –2 +2 –2 +2 –2 +2
(b)
1. (a) Horizontal bar graph (b) 4 names
10 8 10 8 10 8 10
(c) Le er A (d) 5 names (e) 46 students
Pa ern is –2 and +2.
2. (a) Wednesday and Thursday (b) 20
(c) Friday (50 – 35) (d) Monday (50 – 30 = 20) +10 +10 +10 +10 +10 +10
(c)
Review Exercise 10 8 10 8 10 8 10
1. (a) 195 fruits (b) Mango (c) Pear Pa ern is +10.
(d) Banana (e) Strawberry –5 –5 –5 –5
(d)
2. Week Number of Chocolates
265 260 255 250 245
I Pa ern is –5.
Scale Exercise 14.2
II
= 500 1. For each row from le to right, numbers increase by 1
III chocolates and from right to le , they decrease by 1.
For each column from top to bo om, numbers increase
IV by 10 and from bo om to top, they decrease by 10.
2. (a) Start from 2 and skip count by 2 in forward
V
direc on.
(a) 2,500 chocolates (b) 13,500 chocolates (b) Start from 17 and skip count by 5 in backward
(c) Week V (d) Week II (e) 1,500 chocolates direc on.
3. (a) Clothes (b) 50 (c) 20 units 3. (a)
75 5
(d) 345 items (e) =
345 23 (b)
4. (a) 135 runs (b) Team D (c) Team C
(d) 75 runs (e) Team B and Team F Exercise 14.3
Progress Worksheet 1. (a) 65; Start from 13 and add 13 each me.
1. (a) pictograph (b) bar graph (c) data (b) 60; Start from 100 and subtract 10 each me.
(d) data handling (c) 6; Start from 34 and subtract 7 each me.
2. Animals liked by kids in a society (d) 27; Start from 7 and add 5 each me.
Name of (e) 320; Start from 20 and mul ply by 2 each me.
Number of Kids
the Animal (f) 10; Start from 810 and divide by 3 each me.
Cat
Scale 2. (a)
Elephant = 5 kids
Rabbit (b)
Dog
(c)
(a) Cat (b) 110 (c) Rabbit (d) Dog
3. (a) 4 students (b) Pain ng and coin collec on (d)
(c) 9 students (d) 3 students (e) 31 students 3. (a) 112 (b) 30
52 60
Chapter 14: Pa erns 10 20
24 28 32
5 5 15
Exercise 14.1 11 13 15 17
4 1 4 11
1. (a) Yes (b) No (c) No (d) Yes
4. Students to do on their own.
2. (a)
Review Exercise
(b) A B C A B C A B C 1. (a) 8, 14, 20, 26, 32, 38, 44 (b) I H G F E D C B A

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