Addition
3 + 9 = ?
12
8 - 5 = ?
3
2 + 9 - 6 = ?
5
Regroup 1 ten as 10 ones for the number 43
3 tens
13 ones
19 - 4 - 4 - 1
10
10 + 0 + 7 = ?
17
19 - 4 - 3
12
10 + 12 - 7
15
Regroup 1 ten as 10 ones for the number 90.
8 tens
10 ones
386 + 90 = ?
476
12 + 23 = ?
35
57 - 32
25
28 + 54 -12
70
Regroup 1 hundred as 10 tens for the number 523.
12 tens
3 ones
10000 - 0 + 0 = ?
10000
11 + 13 + 20 = ?
44
245 - 132 = ?
113
100 + 500 - 200
400
Regroup 1 hundred as 10 tens for the number 999.
8 hundreds
19 tens
9 ones
4 + 4 + 4 + 4 + 4
20
356 + 423 = ?
779
345 - 126 = ?
219
345 - 223 + 1
123
Complete this problem using regrouping.
543
- 472
_________
71
889 + 111 = ?
1000