Grade 5 - Number
Standard 5.N.4 - Analyze and identify the property of multiplication shown in the equation.
Included Skills: Number Properties, Multiplication
Apply mental mathematics strategies for multiplication, such as • annexing then adding zeros • halving and doubling • using the distributive property • Determine the products when one factor is a multiple of 10, 100, or 1000 by annexing zero or adding zeros (e.g., for 3 × 200 think 3 × 2 and then add two zeros). • Apply halving and doubling when determining a product (e.g., 32 × 5 is the same as 16 × 10). • Apply the distributive property to determine a product involving multiplying factors that are close to multiples of 10 [e.g., 98 × 7 = (100 × 7) – (2 × 7)].