Addition
26 + 39
65
39 - 27
12
55 rounded to the nearest ten
60
78
70 + 8
8 x 2
16
326 + 432
758
78 - 56
22
143 rounded to the nearest ten
140
367
300 + 60 + 7
5 x 4
20
652 + 598
1,250
362 - 254
108
645 rounded to the nearest hundred
600
9,269
9,000 + 200 + 60 + 9
9 x 3
27
845 + 378
1,223
795 - 633
162
489 rounded to the nearest ten
490
5,274
5,000 + 200 + 70 + 4
2,652 + 2,489
5,141
4,789 - 2,432
2,357
3,262 rounded to the nearest ten
3,260
12,754
10,000 + 2,000 + 700 + 50 + 4