The following question has two parts. First, answer part A. Then, answer part B.
Part A
Hailey is making floral centerpieces for a wedding. Each centerpiece has 17 flowers. She has 430 flowers for the project. She estimates that she can make between 20 and 30 complete centerpieces. Is her estimate reasonable?
Use your knowledge of place value and division to explain the reasonableness of her answer.
To determine the reasonableness of Hailey's estimate, we can divide the total number of flowers she has by the number of flowers needed for each centerpiece.
430 flowers / 17 flowers per centerpiece = 25.29 centerpieces
Based on this calculation, it seems reasonable that Hailey can make between 20 and 30 complete centerpieces since the estimated number falls within this range.
Part B
Suppose Hailey wants to have exactly 25 complete centerpieces for the wedding. How many more flowers does she need to meet this goal?
To calculate the number of flowers needed for 25 centerpieces, we can multiply the number of centerpieces by the number of flowers needed for each centerpiece.
25 centerpieces x 17 flowers per centerpiece = 425 flowers
To find out how many more flowers Hailey needs, we subtract the number of flowers she already has from the number of flowers needed.
425 flowers - 430 flowers = -5 flowers
Hailey actually has 5 more flowers than she needs for 25 complete centerpieces.