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 zero • halving and doubling • using the distributive property. • Achievement Indicators • Students who have achieved this outcome(s) should be able to: - Determine the products when one factor is a multiple of 10, 100 or 1000 by annexing zero or tacking on zeros, e.g., for 3 × 200 think 3 × 2 hundreds which equals six hundreds (600). - Apply halving and doubling when determining a given product, e.g., 32 × 5 is the same as 16 × 10. - Apply the distributive property to determine a given product involving multiplying factors that are close to multiples of 10, e.g., 98 × 7 = (100 × 7) – (2 × 7)