Question

Prove that 1+3=4 and 5×4=20

Answer 1

hey friend your answer is here
I'll prove it by an example
3+1=4
suppose you are having 3 toffees and your friend gives you one more so total you have is 4 so 3+1=4
5*4=20
suppose you get 5 toffees 4 times that is 5*4=20.…
hope it helps
plz mark as brainiest....

Answer 2

1+3=4

sol:-. 1+3=4

as we written 2+1=3

1+2+1=4 answer

5×4=20

= step 1 5×1=5

= step 2. 5+5=10

= step3. 10+5=15

= step4. 15+5=20

therefore , 5×4=20 in steps 4