Addition input/output tables – up to three digits
Learn with an example
Complete the table.
Rule: add 100
| In | Out |
| 168 | |
| 422 | 522 |
| 159 | |
| 78 |
Start with the numbers in the “In” column. Add 100 to each number.
168 + 100 = 268
422 + 100 = 522
159 + 100 = 259
78 + 100 = 178
Write the answers in the table:
| In | Out |
| 168 | 268 |
| 422 | 522 |
| 159 | 259 |
| 78 | 178 |
Complete the table.
Rule: add 100
| In | Out |
| 389 | |
| 817 | 917 |
| 30 | |
| 241 |
Start with the numbers in the “In” column. Add 100 to each number.
389 + 100 = 489
817 + 100 = 917
30 + 100 = 130
241 + 100 = 341
Write the answers in the table:
| In | Out |
| 389 | 489 |
| 817 | 917 |
| 30 | 130 |
| 241 | 341 |
Complete the table.
Rule: add 100
| In | Out |
| 190 | |
| 407 | |
| 159 | 259 |
| 566 |
Start with the numbers in the “In” column. Add 100 to each number.
190 + 100 = 290
407 + 100 = 507
159 + 100 = 259
566 + 100 = 666
Write the answers in the table:
| In | Out |
| 190 | 290 |
| 407 | 507 |
| 159 | 259 |
| 566 | 666 |
Let’s practice!
