Subtraction (no regrouping)
500-300=
200
Which place value do I need to regroup?
628-419=
The ones
452-333=
119
732-182=
550
100
Which place value do I need to regroup?
722-114
the ones
683-128=
555
632-151=
481
750-150=
600
Which place value do I need to regroup?
619-291=
the tens
834-129=
705
842-451=
391
459-127=
332
Which place value do I need to regroup?
834-192=
the tens
962-109=
853
962-371=
591
856-432
424
Which place value do I need to regroup?
733-239=
Both the tens and the ones
465-236=
229
1562-370
1192