Vertical Addition by Partition with 2-digit Numbers 47 + 60 100 (40 + 60) Add the tens 7 (7 + 0) Add the units 107 Vertical Addition by Partition with 3-digit Numbers 259 + 582 700 (200 + 500) Add the hundreds 130 (50 + 80) Add the tens 11 (9 + 2) Add the units 841 |