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2. If 1 2 3 then the secret message
will be decoded as .....................................
a. 1223113 b. 2132311 c. 2132113
B. Write ‘T’ for true and ‘F’ for false.
1. In a number pyramid, the number in each space is the sum of the
two numbers below it.
2. In the number grid, each grid is replaced by the sum of the numbers
in it.
C. Answer the following questions:
1. What is the process of converting a hidden message
to a meaningful text?
2. Your friend, Arjun, wrote BAT as TAB; then how will
you write the word CAR using his secret code?
21 st
D. Competency-based/Application-based question. Century #Critical Thinking
Skills
Amisha is building a number pyramid. If the bottom two numbers are
2 and 1, what number will go above them?
SDG Activity
Have the children role-play as "Water-Saving Warriers," showing
how to turn off taps properly and practice good hygiene. Discuss
how these actions help protect our water resources.
Teacher's Corner
Show more examples of number pyramid and number grid to the students.
Reasoning and Analysis 53

