IXL Math Workbook, Grade 3. Your child will love to practice math with this fun, vibrant workbook! Created by IXL, a trusted leader in math education, this workbook covers the must-know skills for third graders, from multiplication and fractions to geometry and measurement. Multiplication Worksheets 1, 3, or 5 Minute Drill Multiplication Worksheets. A multiplication math drill is a worksheet with all of the single digit problems for multiplication on one page. A student should be able to work out the 100 problems correctly in 5 minutes, 60 problems in 3 minutes, or 20 problems in 1 minute. Grade 3 addition worksheets In third grade, children practice mental additions with two-digit numbers and certain easy type of additions with three-digitn umbers. They also add several 3- and 4-digit numbers with regrouping using the standard addition algorithm (where one number is written under the other). Discover over 50 thousand math worksheets on a variety of elementary and middle school topics. Our PDF math worksheets are easy to print or download and free to use in your school or home.