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Addition with Regrouping in Ones, Tens and Hundr ...
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6767 + 3211
9988
Oops!
Okay!
3011 + 1222 + 2631
6864
Oops!
Okay!
2381 + 1418
3799
Oops!
Okay!
9108 + 201
9309
Oops!
Okay!
4217 + 95
4312
Oops!
Okay!
2108 + 5431
7539
Oops!
Okay!
3411 + 1567
4978
Oops!
Okay!
100 + 8899
8999
Oops!
Okay!
4300 + 3013 + 1001
8314
Oops!
Okay!
253 + 9723
9976
Oops!
Okay!
1053 + 6905
7958
Oops!
Okay!
3705 +1103
4808
Oops!
Okay!
3628 + 795
4425
Oops!
Okay!
1846 + 1142
2988
Oops!
Okay!
7627 + 2180
9807
Oops!
Okay!
5348 + 3792
9140
Oops!
Okay!
2764 + 83
2847
Oops!
Okay!
7888 + 1010
9898
Oops!
Okay!
7176 + 1840
9016
Oops!
Okay!
3769 + 522
4291
Oops!
Okay!
5572 + 2127
7699
Oops!
Okay!
4918 + 3050
7968
Oops!
Okay!
1067 + 1300
2367
Oops!
Okay!
2230 + 6869
9999
Oops!
Okay!
6945 + 2187
9132
Oops!
Okay!
5001 + 4370
9371
Oops!
Okay!
2426 + 79
2505
Oops!
Okay!
2800 + 3700
6500
Oops!
Okay!
2348 + 153
2501
Oops!
Okay!
4765 + 2314
6989
Oops!
Okay!
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