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Study
Addition and Subtraction Within 1000
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872 - 235
637
Oops!
Okay!
123 + 456
579
Oops!
Okay!
789 + 123
912
Oops!
Okay!
475 + 351
826
Oops!
Okay!
633 + 226
859
Oops!
Okay!
742 - 325
417
Oops!
Okay!
541 + 235
776
Oops!
Okay!
822 - 345
477
Oops!
Okay!
278 + 50 = ....
328
Oops!
Okay!
456 + 789
1245
Oops!
Okay!
763 − 207 = ⋅⋅⋅
556
Oops!
Okay!
851 - 635
216
Oops!
Okay!
357 + 252
609
Oops!
Okay!
34 + 20 = ....
54
Oops!
Okay!
204 + 40 = ....
244
Oops!
Okay!
528 - 336
191
Oops!
Okay!
215 + 126 = ....
341
Oops!
Okay!
558 - 372
186
Oops!
Okay!
725 - 245
480
Oops!
Okay!
562 - 324
238
Oops!
Okay!
587 - 362
225
Oops!
Okay!
542 - 325
217
Oops!
Okay!
526 + 336
862
Oops!
Okay!
45 - 23 = ....
22
Oops!
Okay!
242 − 128 = ⋅⋅⋅
114
Oops!
Okay!
567 − 40 = .⋅⋅⋅
527
Oops!
Okay!
502 - 234
268
Oops!
Okay!
483 - 252
231
Oops!
Okay!
623 + 238
861
Oops!
Okay!
153 + 449 = ....
602
Oops!
Okay!
880 - 362
518
Oops!
Okay!
425 + 235
660
Oops!
Okay!
196 + 598
794
Oops!
Okay!
352 + 423
775
Oops!
Okay!
824 - 322
502
Oops!
Okay!
163 + 22 = ....
185
Oops!
Okay!
703 + 86 = ....
789
Oops!
Okay!
254 + 196 =
450
Oops!
Okay!
583 - 265
318
Oops!
Okay!
344 + 267
611
Oops!
Okay!
368 + 300 = ....
668
Oops!
Okay!
249 − 124 = ⋅⋅⋅
125
Oops!
Okay!
426 + 439 = ....
865
Oops!
Okay!
541 + 320
860
Oops!
Okay!
718 − 300 = .⋅⋅⋅
418
Oops!
Okay!
254 - 30 = ....
224
Oops!
Okay!
523 + 320
843
Oops!
Okay!
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