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• We usually start with the number at the centre. Here, it is 30.
10 less
than 30
1 more
1 less 10+20 than 30 30
Prime (Ver. 2.2)-II 10 more
than 30
than 30
• Now, fill the remaining places in the grid according to the instruction given
78
in each box.
Secret Message: Decoding
Decoding is the process of converting a hidden message to a meaningful text.
The hidden message or secret message can be in the form of a symbol, number,
picture, letter, or a pattern.
For example, if 1 2 3 then the secret message
will be decoded as 132112.
What if you could use computer to create secret codes that
only your friends could decode? What would your code say,
and how would you use it to communicate?
21 st #Critical Thinking
Warm A. Tick ( ) the correct option. Century #Information Literacy
Skills
Up! 1. When you have a message that looks like this: "HaPyP,"
what do you do to make it readable?
a. Colour it b. Decode it
2. in number grid, do we usually start with the number at
the centre?
a. yes b. Nt

