Study Guide – Multiplication Test Test Date: Friday 11/13 Students must be able to explain and apply the properties of multiplication (Identity property, zero property, associative property, commutative property, and distributive property). Students must be able to understand and distinguish between the concepts of area and perimeter. Students must be able to list factors and/or multiples for a given number; students must be able to distinguish between a factor and a multiple. o List the factors of 20 - { 1,2,4,5,10,20} o List the multiples of 20 - 20, 40, 60, 80… Students must be able to find the greatest common factor (GCF) and the least common multiple (LCM) of two given numbers. Students must be able to identify a number as prime or composite. Ex: 81 is composite 53 is prime Students must be able to draw arrays for a given perimeter. Perimeter: 14 units Possibly arrays: 6 x 1 or 1 x 6 5 x 2 or 2 x 5 3 x 4 or 4 x 3 Students must be able to determine the area, perimeter, and factor pair of a given array; Students must be able to draw and label the array for a given factor pair. 6 3 Factor Pair: 3 x 6 Area: 18 units² Area =(length x width) Perimeter: 3+ 3+ 6+ 6= 18 units Perimeter=L+L+W+W Students must be able to name a number based on information (clues) provided. Students must be able to create 5 digit numbers based on divisibility requirements. Students must be able to multiply numbers by multiples of 10, 100, 1000 etc. 50 x ___________ = 30,000 (600) 33 x 3000 = ____________ (99,000) 400 x ___________ = 480,000 (1200) Students must be able to estimate products using concepts involving multiples of 10, 100, 1000 etc. *Round to the highest PV *do NOT round single digit numbers Example: 57 x 287 round 60 x 300 = 18,000 Students must be able to multiply numbers using the TRADITIONAL METHOD (regrouping) of multiplication. 2 3 68 x 34 272 + 2040 2,31 2 Students must be able to apply the FOUR STEP PROBLEM SOLVING METHOD to solve application word problems. Step 1: Find out Step 2: Choose a strategy Step 3: Solve it Step 4: Look back and report answer