Press here to CLOSE XAdd and Carry

Ask your teacher or parent for help.

For mobile devices tap the sum area to activate the keypad. Browser text size should be set to normal or medium.

Work from right to left adding each place starting with ones, then the tens, and finally the hundreds. Carry a 1 into the thousands place if necessary. Each time a correct digit is typed, if it is necessary to carry a one to the next place a 1 will appear above digits. Use the left arrow key to move from the ones place, to the tens place, and so on. "Correct!" displays when you have the entire answer correct. Press reset , click on a number, or use the ENTER or RETURN key to make a new problem. Place the cursor on the ? for help.

Click the yellow check to track how many you get correct. Select the number of tries you want to track by clicking - or + by the #10. When resetting, the first counter counts correct answers; the right one counts the number of math problems you've tried. The "Correct!" mark will not appear when using the counters, but if your answer is incorrect then the correct answer displays. When complete, your score is shown.

If the math symbols spin for awhile, try resetting the problem again.

Click on the apple for our math flash cards page. Click on "Addition With Carrying" in the math flash cards page's right column for a great math tool for teaching addition of multi-digit numbers.

Ask your teacher or parent for help.

For mobile devices tap the sum area to activate the keypad. Browser text size should be set to normal or medium.

Work from right to left adding each place starting with ones, then the tens, and finally the hundreds. Carry a 1 into the thousands place if necessary. Each time a correct digit is typed, if it is necessary to carry a one to the next place a 1 will appear above digits. Use the left arrow key to move from the ones place, to the tens place, and so on. "Correct!" displays when you have the entire answer correct. Press reset , click on a number, or use the ENTER or RETURN key to make a new problem. Place the cursor on the ? for help.

Click the yellow check to track how many you get correct. Select the number of tries you want to track by clicking - or + by the #10. When resetting, the first counter counts correct answers; the right one counts the number of math problems you've tried. The "Correct!" mark will not appear when using the counters, but if your answer is incorrect then the correct answer displays. When complete, your score is shown.

If the math symbols spin for awhile, try resetting the problem again.

Click on the apple for our math flash cards page. Click on "Addition With Carrying" in the math flash cards page's right column for a great math tool for teaching addition of multi-digit numbers.

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