Question

Explain why one half times two equals one whole

Answer 1

becasue two halves add up to one and by saying one half times two, you are also saying one half plus one half

Answer 2

two halfs equal one whole. think of it like this, an orange cut in half leaves you with two halfs, put them together and you have a whole. simple. multiplying by 2 just means adding a number two times.
1 half plus one half= 2halves= 1 whole
1half x 2= 2 halves=1 whole