Loading…
Example 3.14 from Prealgebra, 3.2 Add Integers
Model:
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.
| Interpret the expression. | means the sum of and . |
| Model the first number. Start with 5 positives. | |
| Model the second number. Add 3 positives. | |
| Count the total number of counters. | |
| The sum of 5 and 3 is 8. |
The book's Try It right after this example: same idea, new numbers. Only the answer is given.
Model the expression.
How did it go?