Trudy wants to multiply 66×606. She says that all she has to do is find 6×606 and then double that number. Explain why Trudy's method will not give the correct answer. Then show how to find the correct product.
You can't actually multiply with 11 since no one asked to do that.Instead just say that you need to look at the zeros by just multiplying the zeros wouldn't be in the right place.