Class 8 Maths Bridge Program Course | Activity W 2.4 for Week 2 | 8th Class Maths New NCERT Book

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Teacher may encurage students t slve puzzles t make them
explre different cncepts f Mathematics learnt. The NEP 2020
encurages puzzles in the Mathematics curriculum. Sme puzzles are
given belw.
Puzzle 1
Think f a number.
Add 5 t it.
Multiply the result (gt in step 2) by 3.
Nw subtract 15 frm abve.
Nw divide the last result by the riginal number.
Finally add 7 t the result.
Puzzle 2
Think f a number between 20 t 99.
Add the digits f the number.
Subtract the result frm riginal number.
Again, add the digits f final number yu get in step 3.
Puzzle 3
Think f a number.
Add 5.
Duble yur result.
Add 40.
Divide by 2.
Subtract the number that yu first thught.
Multiply by 4.
Puzzle 4
Find me: Wh am I ?
I am a 2-digit number.
The sum f my digits is 10.
I am greater than 8 but less than 30.
What number am I ?
Mathematics
19
Puzzle 5
Find me: Wh am I ?
I am a prime number.
The sum f my digits is 8.
I am greater than 10 but less than 50.
What number am I ?
Puzzle 6
Find me: Wh am I ?
I am a square number.
My first digit is 2.
The sum f my digits is 10.
What number am I ?