you buy 70 of your favorite songs from a web site that charges $0.97 for each song. What is the cost of 70 songs? Use mental math.
To calculate the cost of 70 songs at $0.97 per song using mental math, you can multiply $0.97 by 7 and then multiply the result by 10.
$0.97 x 7 = $6.79
$6.79 x 10 = $67.90
Therefore, the cost of 70 songs would be $67.90.
To find the cost of 70 songs, we can do mental multiplication.
$0.97 x 70 = $67.90
Therefore, the cost of 70 songs is $67.90.