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Guidelines for solving Exercise 2 Page 19 Math 5
Problem statement:
A forest planting team averages planting 1200 pine trees every 3 days. How many pine trees does the team plant in 12 days?
Solution method:
1. First Method: Applying the unit conversion method
- Step 1: Perform division to find which unit of quantity 1 corresponds to the value of quantity 2
- Step 2: Compare the remaining value of quantity 1 with the corresponding value (the result just found) to determine how many times more or less.
2. Second Method: Applying the ratio method
- Step 1: Compare the 2 values of quantity 1 to determine how many times one number is greater than the other.
- Step 2: The known value of the second quantity will be increased or decreased by the factor just found above.
Answer:
+ Summary
3 days: 1200 pine trees
12 days: ... pine trees?
+ Solution:
In 12 days compared to 3 days, it is:
12 : 3 = 4 (times)
In 12 days, the team planted:
