3-digit Addition and Subtraction worksheets – Free Samples | Mental Math
3-digit Addition and Subtraction is to add or subtract two or more numbers between 100 and 999. In each method, you first add or subtract the ones place digits with one another, and their addition or subtraction makes the ones place digit of the final sum or difference respectively. In case of addition, the carry over goes to the next number place. For subtraction, you borrow from the next number place. Doing the same with the tens and hundreds place digits gives you the tens and hundreds place digits of the final sum or difference respectively.
Mental Math worksheets and workbooks will help you kids learn the basics of math. Browse our categories below and find the best worksheets for your kids.
Time Mental Math by Level
Starting from pre-k (or even before going to school) to level 10, these carefully crafted and timed mental math worksheets allow students to learn maths, starting at the appropriate difficulty for their competence. This provides each student and child the unique ability to find their exact starting point and then take the step-by-step process to gradually increase their skills and ability, and eventually master the mathematical concepts.
Time Worksheets by Topics
Each specially designed timed worksheet for each topics (addition, subtraction, multiplication, division, fraction, decimal, integer, and equation), allows students to start problem solving at their own ability level. Students will gradually move step-by-step until they master every math concept.
Math Worksheets by Grade
Based on the standard international math curriculum, these in-depth math worksheets offer extra specialised math problem solving opportunities. This is to help students master concepts faster and gain confidence. This is the best option if you would like your kids/students to excel in mathematics