Work out the answers to:
a) $8.2 \times 13$
b) $0.8 \times 5.7$
Answer (2)
Multiply 8.2 by 13 to get 106.6 .
Multiply 0.8 by 5.7 to get 4.56 .
The result of 8.2 × 13 is 106.6 .
The result of 0.8 × 5.7 is 4.56 .
106.6 , 4.56
Explanation
Understanding the Problem We need to calculate the product of two numbers in two separate cases: a) 8.2 × 13 b) 0.8 × 5.7
Calculating the First Product a) To multiply 8.2 by 13 , we can perform the multiplication:
8.2 × 13 = 106.6
So, 8.2 × 13 = 106.6
Calculating the Second Product b) To multiply 0.8 by 5.7 , we can perform the multiplication:
0.8 × 5.7 = 4.56
So, 0.8 × 5.7 = 4.56
Final Answer Therefore, the answers are: a) 8.2 × 13 = 106.6 b) 0.8 × 5.7 = 4.56
Examples
Understanding multiplication is essential in everyday life. For instance, if you're planning a road trip and need to calculate the total distance you'll travel over several days, you'll use multiplication. If you drive 250 miles each day for 3 days, the total distance is 250 × 3 = 750 miles. Similarly, if you're calculating the cost of buying multiple items, such as 5 books that cost $12.50 each, you'll multiply to find the total cost: $5 \times 12.50 = $62.50. These basic multiplication skills are fundamental for budgeting, planning, and making informed decisions.
The product of 8.2 × 13 is 106.6 , and the product of 0.8 × 5.7 is 4.56 .
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