Jayne Robbins

Easy-to-follow scaffolded worksheets guide your students' thinking through the multi-step process of estimating sums and differences of 2-digit numbers. Your students will thank you for breaking down this daunting task into easy steps, starting with the art of rounding up and rounding down.

Did you know that there are 12 types of addition and subtraction word problems (story problems) identified in the Common Core Math Standards? Actually there is a little overlap between types, but even so, that is a whole lot of different scenarios to understand and tackle! This resource will present your students (or teachers) with examples of all the types of story problems presented by the Common Core Math Standards. Print these pages singly, or as a workbook, or as laminated cards. Use them

What two numbers added together make ten? Common Core Math Standard K.OA.4. requires that Kindergarten students should find the number that makes 10 when added to a given number from 1 to 9 by using objects or drawings, and record the answer with a drawing or equation. In this engaging activity, your students will count raindrops and draw additional raindrops to make 10, then record their equations in the spaces provided. Standard 1.OA.3. requires that first grade students should apply the