Loading…
Example 1.21 from Prealgebra, 1.2 Add Whole Numbers
Add:
Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.
| Write the numbers so the place values line up vertically. | |
| Add the digits in each place value. | |
| Add the ones: Write the in the ones place of the sum and carry the to the tens place. |
|
| Add the tens: Write the in the tens place and carry the to the hundreds place. |
|
| Add the hundreds: Write the in the hundreds place and carry the to the thousands place. |
|
| Add the thousands . Write the in the thousands place and carry the to the ten thousands place. |
|
| Add the ten-thousands . Write the in the ten thousands place in the sum. |
This example had three addends. We can add any number of addends using the same process as long as we are careful to line up the place values correctly.
The book's Try It right after this example: same idea, new numbers. Only the answer is given.
Add:
How did it go?