Rounding to the nearest 10
89
90
99
100
325 + 127 =
400
208 + 131 =
339
117 + 349 =
466
470
400
192
190
65
100
389 + 690 =
900
497 + 501 =
998
606 + 808 =
1,414
1,400
1,420
255
260
382
400
507 + 599 =
1000
765 + 432 =
1,197
192 + 43 =
235
230
200
0
250
300
101 + 442 =
500
999 + 999 =
1,998
41 + 2 =
43
40
0
3,987,654
3,987,650
49
0
105 + 999 =
1000
4,098,765 + 5,432,109 =
9,530,874
999 + 99 =
1,098
1,100
1,100