Column Addition
5
3
+ 4
12
37+41
78
67
+ 23
90
347
+ 173
520
Round to the nearest 10 then add
47+12
60
7
8
+ 9
24
83+12
95
48+23
71
618
+ 798
1,416
Round to the nearest 10 then add
67+59
130
4
3
5
+ 2
14
200 + 705
905
+ 359
460
389
+ 3,452
3,841
Round to the nearest 10 then add
342+28
370
6
7
5
+ 7
25
4,275 + 1,022
5,297
7,902
+ 505
8,407
5,744
+ 2,856
8,600
Round to the nearest 100 then add
56+521
600
9
8
8
+ 6
31
26+102+51
179
6,331
+ 2,559
8,890
290
2,271
+ 1,846
4,407
Round to the nearest 100 then add
521+378+47
900