Show:
Rounding
Adding without regrouping
Subtracting with regrouping
Place value
What is it worth?
100
Round 45 to the nearest 10.
50
100
765 + 149=
914
100
876 - 269=
607
100
What place is the 9 in? 6789
ones
100
What is the 8 worth? 6789
80
200
Round 567 to the nearest hundred.
600
200
378 + 246=
624
200
349 - 188=
161
200
What place is the 5 in? 6509
hundreds
200
What is the 7 worth? 876
70
300
Round 1234 to the nearest 10.
1230
300
267 + 735=
1002
300
636 - 209=
427
300
In what place is the zero? 7609
tens
300
What is the 6 worth in the number 7865?
60
400
Round 4567 to the nearest hundred.
4500
400
118 + 228=
346
400
885 - 779 =
106
400
In what place is the number 3 in? 3458
thousands
400
What is the 1 worth in the number 4129?
100
500
Round 24 to the nearest 100.
0
500
629 +292=
921
500
248 - 129 =
119
500
In what place is the 7 in? 64798
hundreds
500
What is the zero worth in the number 9101?
0