Trace: 3-Digit by 3-Digit Subtraction

3-Digit by 3-Digit Subtraction
Name:
Date:
Correct:____ /60
Time (sec):
Composite Score:

Composite score = time in seconds / correct (lower is better)

Calculate each difference.

552
-530
991
-474
669
-121
399
-113
903
-204
887
-280
828
-713
359
-214
359
-126
966
-429
305
-110
924
-172
335
-313
393
-368
762
-399
610
-343
430
-305
331
-232
741
-338
656
-201
763
-667
423
-396
919
-635
752
-515
967
-332
476
-267
975
-415
350
-216
772
-615
571
-360
499
-451
677
-113
846
-330
502
-436
478
-183
913
-719
875
-823
735
-628
779
-765
493
-397
676
-160
183
-158
936
-126
519
-447
364
-161
781
-568
862
-684
836
-734
783
-660
857
-456
562
-370
731
-273
397
-357
897
-314
619
-597
494
-248
894
-469
288
-236
879
-839
937
-252
Trace Worksheets

The 3-Digit by 3-Digit Subtraction (60 Questions) Worksheet Page 1

3-Digit by 3-Digit Subtraction Answers
Name:
Date:
Correct:____ /60
Time (sec):
Composite Score:

Composite score = time in seconds / correct (lower is better)

Calculate each difference.

552
-530
22
991
-474
517
669
-121
548
399
-113
286
903
-204
699
887
-280
607
828
-713
115
359
-214
145
359
-126
233
966
-429
537
305
-110
195
924
-172
752
335
-313
22
393
-368
25
762
-399
363
610
-343
267
430
-305
125
331
-232
99
741
-338
403
656
-201
455
763
-667
96
423
-396
27
919
-635
284
752
-515
237
967
-332
635
476
-267
209
975
-415
560
350
-216
134
772
-615
157
571
-360
211
499
-451
48
677
-113
564
846
-330
516
502
-436
66
478
-183
295
913
-719
194
875
-823
52
735
-628
107
779
-765
14
493
-397
96
676
-160
516
183
-158
25
936
-126
810
519
-447
72
364
-161
203
781
-568
213
862
-684
178
836
-734
102
783
-660
123
857
-456
401
562
-370
192
731
-273
458
397
-357
40
897
-314
583
619
-597
22
494
-248
246
894
-469
425
288
-236
52
879
-839
40
937
-252
685
Trace Worksheets

The 3-Digit by 3-Digit Subtraction (60 Questions) Worksheet Page 2