TEKS- 4.4A Add and subtract whole numbers and decimals to the hundredths place using the standard algorithmTEKS- 4.4B Determine products of a number and 10 or 100 using properties of operations and place value understandingsTEKS- 4.4C Represent the product of 2 two-digit numbers using arrays, area models, or equations, including perfect squares through 15 by 15TEKS- 4.4D Use strategies and algorithms, including the standard algorithm, to multiply up to a four-digit number by a one-digit number