Which strategies can be used to solve this problem?
Colin invited 31 people to the picnic. He can fit 10 people at his picnic table and the rest will sit on blankets. Each blanket can hold 3 people. How many blankets does Colin need so that everyone has somewhere to sit?
Choose all answers that are correct.
No choices given.
What is your answer?
April, we can't just give you the answers. You have to tell us what your answer is and we will check it.
31 - 10 = 21 People to sit on blankets.
Can you finish it?
NO
To solve this problem, there are a couple of strategies that can be used:
1. Division method: Divide the total number of people on blankets by the number of people each blanket can hold.
- Divide the remaining number of people (31 - 10 = 21) by the number of people each blanket can hold (3), i.e., 21 รท 3 = 7. So, Colin will need 7 blankets for the remaining people to sit on.
2. Addition method: Add the number of people sitting at the picnic table to the remaining number of people who will sit on the blankets.
- Add the number of people sitting on the picnic table (10) to the remaining number of people (31 - 10 = 21), i.e., 10 + 21 = 31. So, Colin needs enough blankets so that 31 people can sit.
Both methods give the same answer of 7 blankets. Therefore, the correct answers are:
- Colin needs 7 blankets so that everyone has somewhere to sit.