Answers to the Mental Math Addition Challenge
A
|
A
|
B
|
C
|
D
|
E
|
F
|
G
|
H
|
1
|
38
|
51
|
111
|
38
|
54
|
117
|
104
|
|
2
|
144
|
158
|
56
|
85
|
30
|
86
|
65
|
|
3
|
47
|
58
|
212
|
4.6
|
148
|
7.8
|
||
4
|
8.3
|
407
|
117
|
1110
|
76
|
296
|
264
|
|
5
|
398
|
87
|
1198
|
131
|
596
|
44
|
||
6
|
118
|
45
|
698
|
136
|
87
|
54
|
72
|
|
7
|
441
|
156
|
123
|
880
|
135
|
145
|
597
|
|
8
|
742
|
222
|
353
|
867
|
144
|
197
|
177
|
|
9
|
598
|
157
|
265
|
882
|
215
|
1642
|
1998
|
|
10
|
155
|
555
|
798
|
121
|
174
|
333
|
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