Tentu, berikut adalah artikel tentang 0.8 x 81:
0.8 x 81
This problem involves multiplying a decimal number (0.8) by a whole number (81). Here's how to solve it:
Understanding the Calculation
- 0.8: Represents eight-tenths (8/10).
- x: Means "multiply."
- 81: A whole number.
Methods to Solve
1. Direct Multiplication:
- Multiply 0.8 by 81 as you would with whole numbers.
- Count the total decimal places in both numbers (one in 0.8).
- Place the decimal point in the answer, starting from the right and moving one place to the left.
0.8
x 81
----
8
+ 640
----
64.8
2. Fraction Conversion:
- Convert 0.8 to a fraction (8/10).
- Multiply the fraction by 81.
- Simplify the result if needed.
(8/10) x 81 = (8 x 81)/10 = 648/10 = 64.8
The Answer:
Therefore, 0.8 x 81 = 64.8
