Addition Training

Enter the sum of the number at the top and the number on the left in the square.
Range:100 to 999
Size:10 x 10
Time:
0.0
Avg. Time:Not available
Best Time:Not available
Attempts:0
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+ 237 444 618 912 449 285 381 631 960 443 +
252 252
502 502
799 799
537 537
409 409
976 976
612 612
959 959
358 358
532 532
+ 237 444 618 912 449 285 381 631 960 443 +