Question

Perform the following multiplications rounded to the highest place value:

4.69 × 8.63
96.3 × 1.8
2.93 × 8
41.5 × 3.7
38 × 5.5
1.2 × 2.5
136.2 × 2.5
65.6 × 9.71
21.24 × 3.4
31.03 × 22

Answer 1

Perform the multiplications rounded to the highest place value using the rules of significant figures.

Step-by-step explanation:

The question involves performing multiplications and rounding off the products to the highest place value based on significant figures. This involves understanding how to round numbers and how to treat significant figures in arithmetic operations. To perform these multiplications rounded to the highest place value, we follow the rules of significant figures. The answer must have the same number of significant figures as the least precise number being multiplied. Here are the results for each multiplication:

1. 4.69 × 8.63 = 40.4
2. 96.3 × 1.8 = 170
3. 2.93 × 8 = 23.4
4. 41.5 × 3.7 = 154
5. 38 × 5.5 = 210
6. 1.2 × 2.5 = 3.0
7. 136.2 × 2.5 = 340
8. 65.6 × 9.71 = 640
9. 21.24 × 3.4 = 72.3
10. 31.03 × 22 = 680