Curriculum>Grade 5> Module 2>Topic C: Decimal Multi-Digit Multiplication

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Use rounding to estimate the product of a decimal and a 3-digit whole number. Round each of the factors to their left-most place value. Multiply the rounded numbers to approximate the answer

A. Multiply a 2-digit decimal number by a 2-digit whole number using partial products with an area model

B. Multiply a 2-digit decimal number by a 2-digit whole number using the standard algorithm (Level 1)

C. Multiply a 3-digit decimal number by a 2-digit whole number using the standard algorithm (Level 1)

D. Multiply a 2- or 3-digit decimal number by a 2-digit whole number using the standard algorithm (Level 2)

E. Multiply a 2- or 3-digit decimal number by a 2-digit whole number using the standard algorithm (Level 3)

F. Multiply a decimal number by a round number by factoring out powers of 10

G. Multiply a decimal number by a round number

H. Round a multi-digit number to a given place (Level 2)

I. Round a multi-digit number to a given place (Level 1)

K. Estimate the product of a decimal number and a 3-digit whole number (Part 2)

L. Estimate the product of a decimal number and a 3-digit whole number then solve using the standard algorithm

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