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DDA DDS with and without regrouping
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67 + 45
112
Oops!
Okay!
56 - 32
24
Oops!
Okay!
29 + 39
68
Oops!
Okay!
56 + 56
112
Oops!
Okay!
88 - 55
33
Oops!
Okay!
86 - 22
64
Oops!
Okay!
93 - 24
69
Oops!
Okay!
90 - 32
58
Oops!
Okay!
100-87
13
Oops!
Okay!
97-59
38
Oops!
Okay!
45 + 64
109
Oops!
Okay!
24 + 67
91
Oops!
Okay!
32 + 32
64
Oops!
Okay!
91 - 77
14
Oops!
Okay!
65 + 32
97
Oops!
Okay!
47 + 68
115
Oops!
Okay!
54 + 32
86
Oops!
Okay!
92 - 36
56
Oops!
Okay!
58 - 39
19
Oops!
Okay!
12 + 12
24
Oops!
Okay!
76 - 36
40
Oops!
Okay!
98-74
24
Oops!
Okay!
51-36
15
Oops!
Okay!
78-20
58
Oops!
Okay!
78 + 29
107
Oops!
Okay!
52 - 11
41
Oops!
Okay!
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