NEW. Students will identify multiples and factors of given whole numbers, and determine whether the numbers are prime or composite (4.OA.4). Use these guided math drills to teach and reinforce the fundamentals, or prep for test day. At the top of each worksheet is a mini-lesson followed by several Common Core designed, simulated test questions (including open response and Part A/B questions) to develop proficiency. Worksheets contain tips and scaffolding to guide students, allowing you mo