Creative Chitti is a different kind of calculator. It has the following buttons: Class 7

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Maths Class 7 Maths 159 views Jun 01, 2026 Reviewed & updated Sep 17, 2026
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Creative Chitti is a different kind of calculator. It has the following buttons: Class 7

Question 1.

Creative Chitti is a different kind of calculator. It has the following buttons: Class 7

+1, +10, +100, +1000, +10000, +100000 and +1000000. It always has multiple ways of doing things. “How so?”, you might ask. To get the number 321, it presses +10 thirty two times and +1 once. Will it get 321? Yes. Alternatively, it can press +100 two times and +10 twelve times and +1 once.

Solution:

It can also press +100 three times, + 10 two times and +1 once.

Question 2.

Two of the many different ways to get 5072 are shown below: Class 7

These two ways can be expressed as :

(a) (50 × 100) + (7 × 10) + (2 × 1) = 5072

(b) (3 × 1000) + (20 × 100) + (72 × 1) = 5072

Find a different way to get 5072 and write an expression for the same.

Solution:

(c) (5 × 1000) + (7 × 10) + (2 × 1) = 5072

(d) (4 × 1000) + (10 × 100) + (72 × 1) = 5072, etc.


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