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E:\Working\Focus_Learning\Math_Genius_4_(25-10-2023)\Open_Files\Chap-09
\\December 6, 2023 11:06 AM Bharat Arora P-6 Reader _________________________ Date: ___________________74

2. extend the pattern by drawing the given shape.
(a) (b)

(c) (d)

3. Complete and colour these tiling patterns.
(a) (b)

coDing anD DecoDing

Coding is a method of expressing messages in a secret way. These messages can be
written using numbers in place of letters with the help of some patterns. Look at the
following table in which a number is given for each letter.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

By using a number for a letter, we can write many code messages.
example 1: Write the following messages in the code language using above table.

(a) BYE-BYE 2 25 5 - 2 25 5

(b) HAPPY BIRTHDAY! 8 1 16 16 25 2 9 18 20 8 4 1 25!

(c) RED COLOUR 18 5 4 3 15 12 15 21 18

(d) GOOD MORNING 7 15 15 4 13 15 18 14 9 14 7

example 2: Decode the following messages using the above table.
(a) 8 5 1 12 20 8 9 19 23 5 1 12 20 8 HEALTH IS WEALTH

(b) 4 18 5 1 13 2 9 7 DREAM BIG

(c) 2 5 3 1 18 5 6 21 12 BE CAREFUL

(d) 1 12 12 9 19 23 5 12 12 ALL IS WELL

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