Describe two different ways that you could find the product 2 x 998 using mental math. Find the product and complete the explanation of why your model works.
= 2(1,000 - 2). By the (select)
(1) Think of 998 as 1,000 -2. So, 2 x
2(1,000 - 2) = 2,000 - 4=
Property,
By the (select)
(2) Think of 998 as 900 + 90+
2(900 +90 + 8) = 1,800 + 180 +
Property,