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:20 x 20
Time:
0.0
Avg. Time:Not available
Best Time:Not available
Attempts:0
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+ 308 519 742 832 725 345 932 262 992 893 317 245 426 900 821 153 749 979 826 877 +
768 768
793 793
137 137
685 685
194 194
404 404
957 957
773 773
290 290
311 311
546 546
215 215
145 145
259 259
168 168
943 943
522 522
516 516
547 547
361 361
+ 308 519 742 832 725 345 932 262 992 893 317 245 426 900 821 153 749 979 826 877 +