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Study
Combined: Addition and Subtraction with regroupi ...
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700-277=
423
429
523
577
Oops!
Okay!
54 + 28 =
28
82
83
72
Oops!
Okay!
767+393=
374
1, 160
464
1,050
Oops!
Okay!
743-249=
506
584
494
484
Oops!
Okay!
56 - 37 =
93
94
18
19
Oops!
Okay!
320-145=
175
125
275
225
Oops!
Okay!
349+143=
483
492
392
482
Oops!
Okay!
701-569=
232
132
142
268
Oops!
Okay!
184 - 67 =
123
117
127
251
Oops!
Okay!
798-345=
453
1,143
1,033
443
Oops!
Okay!
75 - 36 =
24
38
39
111
Oops!
Okay!
721-414=
315
307
335
1,135
Oops!
Okay!
627-492=
145
235
135
275
Oops!
Okay!
1,327+836=
1,163
1,245
2,163
1,153
Oops!
Okay!
79 - 34 =
45
35
55
113
Oops!
Okay!
687+159=
532
528
836
846
Oops!
Okay!
963-217=
746
764
780
1,180
Oops!
Okay!
489+340=
829
349
149
729
Oops!
Okay!
375+332=
607
603
707
43
Oops!
Okay!
743+249=
982
506
992
892
Oops!
Okay!
926-717=
1,643
211
209
1,733
Oops!
Okay!
38 + 38 =
76
86
66
16
Oops!
Okay!
45 + 27 =
94
72
62
73
Oops!
Okay!
781-669=
122
1,450
112
102
Oops!
Okay!
2,654-835=
2,221
1,819
1,719
2,819
Oops!
Okay!
454+361=
93
893
815
715
Oops!
Okay!
242+281=
523
39
513
403
Oops!
Okay!
700-365=
225
365
335
465
Oops!
Okay!
37 + 37 =
74
71
64
73
Oops!
Okay!
627+492=
1,119
946
1,019
1,219
Oops!
Okay!
647-373=
374
1,020
910
274
Oops!
Okay!
42 - 28 =
70
15
13
14
Oops!
Okay!
18 + 66 =
74
84
48
83
Oops!
Okay!
33 + 58 =
81
91
92
93
Oops!
Okay!
990-762=
232
239
228
245
Oops!
Okay!
74 + 18 =
92
91
82
29
Oops!
Okay!
800-360=
560
460
440
430
Oops!
Okay!
184+212=
396
366
369
336
Oops!
Okay!
688+150=
<p>738</p>
538
838
828
Oops!
Okay!
657+246=
803
903
893
904
Oops!
Okay!
655+245=
990
800
890
900
Oops!
Okay!
293+361=
564
554
664
654
Oops!
Okay!
64 + 26 =
91
70
90
80
Oops!
Okay!
382+499=
871
791
781
881
Oops!
Okay!
547-265=
322
282
382
222
Oops!
Okay!
55 + 28 =
73
84
38
83
Oops!
Okay!
931+576=
1,407
1,517
1,497
1,507
Oops!
Okay!
35 + 28 =
63
78
53
64
Oops!
Okay!
19 + 16 =
35
15
34
25
Oops!
Okay!
193+195=
388
208
2
288
Oops!
Okay!
17 + 13 =
20
31
12
30
Oops!
Okay!
864-496=
368
432
468
332
Oops!
Okay!
481-399=
880
188
770
82
Oops!
Okay!
397+998=
1,385
1,395
1,295
1,285
Oops!
Okay!
560-390=
950
250
170
850
Oops!
Okay!
85 - 47 =
132
28
48
38
Oops!
Okay!
79 + 14 =
83
93
39
94
Oops!
Okay!
665+273=
838
392
832
938
Oops!
Okay!
56 - 37 =
21
19
29
52
Oops!
Okay!
277+277=
484
444
554
0
Oops!
Okay!
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