Addition
110
+120
-------
230
120
- 110
--------
10
2x1
2
12/2
6
Place this number in expanded form:
325, 642
300 000 + 20 000 + 5000 + 600 + 40 + 2
521
+643
---------
1146
521
-443
--------
78
4x4
16
16/4
4
500 000 + 40 000 + 2000 + 600 + 40 +7
542, 647
987
+498
--------
1485
987
-498
------
489
6x5
30
30/6
5
Place this number in expanded form:
492, 376
400 000 + 90 000 + 2000 + 300 + 70 + 6
7004
+8456
15460
4734
-2854
-------
1880
7x7
49
27/3
9
Return this expanded form to its original number:
800 000 + 80 000 + 8000 + 800 + 80 + 8
888, 888
7325
+7654
14979
6332
-4673
--------
1659
9x9
81
50/10
5
Place this number in expanded form:
54, 321
50 000 + 4000 + 300 + 20 + 1