Final answer:
To sketch base pieces for each computation, follow these steps: combine the sets, regroup the units, regroup the longs, and determine the total number of flats, longs, and units. Using these base pieces, you can calculate the result of the addition.
Step-by-step explanation:
To sketch base pieces for each computation, let's go step by step:
i) Combine sets for a total of flats, longs, and units. For example, if we have 469 flats, 18 longs, and 27 units, the total would be 469 + 18 + 27 = 514.
ii) Regroup units to longs and units. Using the previous example, if each long represents 10 units, we would have 514 units = 51 longs + 4 units.
iii) Regroup longs to flats and longs. Continuing from the previous example, if each flat represents 100 longs, we would have 51 longs + 4 units = 0 flats + 5 longs + 4 units.
iv) There are now 0 flats, 5 longs, and 4 units in the example above.
v) To find the result of 469 + 18 using the base pieces, we have 0 flats + 5 longs + 4 units = 504.