Today we'll Lear about how to solve two plus two in two different ways!

Question

1+1+1+1=4

2+2=4

Answer 1

1 + 1 + 1 + 1 = 4

 

The sum of the 1st set of ones: 1 + 1 = 2

The sum of the 2nd set of ones: 1 + 1 = 2

 

Add the sub-sums.

 

2 + 2 = 4

 

 

The method your teacher is showing you is addition using the number 1, and you just count the quantity of ones.