Question

20
40
60
80
5 Explore a shortcut to add
1 + 2 + 2​

Answer 1

Given:-

• 20
• 40
• 60
• 80
• 5 Explore a shortcut to add
• 1 + 2 + 2

To:-

• Add in shortcut.

Solution:-

• $20 + 40 + 60 + 80 = > 2 + 4 + 6 + 8 + \\ number \: of \: common \: zeros \\ \\ \\ = > 200 \\ \\ hey \: mate \: the \: additional \: value \: is \: 200$

In this kind of addition we just add the natural numbers nit the number (0).

After the addition of natural numbers we see the common number of times zero accured.

In this all numbers has 1 zero so at last we put one zero only.

Hope it helped!

Answer 2

Answer:

Given:

20+40+60+80

Shortcut Solution:

2+4+6+8+no of zeros after each numbers=00

=200