Question
Which expression has an estimated product of 45?
44.7 times 2.1
7.5 times 8.4
8.7 times 5.28
38.1 times 7.3
44.7 times 2.1
7.5 times 8.4
8.7 times 5.28
38.1 times 7.3
Answers
GPT-4o mini
To estimate the products of the given expressions, we can round the numbers to a more manageable form.
1. **44.7 times 2.1**
- Rounding: \( 45 \times 2 = 90 \)
2. **7.5 times 8.4**
- Rounding: \( 8 \times 7.5 = 60 \)
3. **8.7 times 5.28**
- Rounding: \( 9 \times 5 = 45 \)
4. **38.1 times 7.3**
- Rounding: \( 40 \times 7 = 280 \)
From the estimations, **8.7 times 5.28** has an estimated product closest to 45.
1. **44.7 times 2.1**
- Rounding: \( 45 \times 2 = 90 \)
2. **7.5 times 8.4**
- Rounding: \( 8 \times 7.5 = 60 \)
3. **8.7 times 5.28**
- Rounding: \( 9 \times 5 = 45 \)
4. **38.1 times 7.3**
- Rounding: \( 40 \times 7 = 280 \)
From the estimations, **8.7 times 5.28** has an estimated product closest to 45.