0.8 X 81

less than a minute read Jun 10, 2024
0.8 X 81

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

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