CPM Homework Help : CC1MN Problem 9-87

Draw the table below on your paper and look carefully at the algebra tiles to fill in each of the steps. Use your own numbers in the trials, again considering fractions, decimals, and zero.

Steps	Trial 1	Trial 2	Trial 3	Algebra Tile Picture
1. Pick a number.
2. Add ____.
3. Multiply by ____.
4. Subtract ____.
5. Divide by ____.
6. Subtract the original number.

Help:

Notice how the tiles increase or decrease after each step.

Hint 1:

By how much did the algebra tiles increase in Step 2? The third row of the table, first column, now says: 2. Add 3

Hint 2:

By how much was that number multiplied in Step 3?
Now complete the rest of the steps using this method. The fourth row of the table, first column, now says: 3. Multiply by, 3.

Answer:

Hint 3:

Substitute in your own numbers for each trial. The fifth row of the table, first column, now says: 4. Subtract, 3. The sixth row of the table, first column, now says: 5. Divide by, 3.

Sample Trial:

The second column of the table, now says: Trial 1, 3, 6, 18, 15, 5, 2.

Added to the blank on The third row, first column, 3

Added to the blank on The fourth row, first column, 3.

Added to the blank on The fifth row, first column, 3 & to the blank on The sixth row, first column, 3.

Added to The second column, starting on second row, of the table, 3, 6, 18, 15, 5, 2.