Ideal for 3rd graders, the Mixed Double Digit Addition & Subtraction printable challenges students to switch gears between operations, reinforcing operational awareness.

How to Solve Addition

Before solving, carefully check the math symbol next to each problem. If it is a plus sign (+), add the columns from right to left, remembering to carry if necessary. If it is a minus sign (-), subtract the bottom number from the top, borrowing from the tens place if the top digit is smaller.

You can view the preview of this worksheet below, or download the full high-resolution PDF along with the answer key for easy grading.