To calculate the product of 4.2 and 1.6, multiply them as whole numbers (42 × 16 = 672) and adjust the decimal place to get 6.72 as the result.
To find the product of 4.2 and 1.6, you can follow these steps:
Write down the numbers you want to multiply, which are 4.2 and 1.6.
Multiply the numbers as if they were whole numbers: 42 × 16.
Since 4.2 has one decimal place and 1.6 also has one decimal place, the total number of decimal places in the product should be the sum of decimal places in the multiplicands: 1 + 1 = 2 decimal places.
Calculate 42 × 16 which equals 672.
Place the decimal point in the result to have two decimal places: 6.72.
Therefore, the product of 4.2 and 1.6 is 6.72.
Remember to express your answers with the proper number of significant figures and proper units.