Question

How do you evaluate `5\cdot 4- 6\cdot 9+ 5`?

Answer 1

See a solution process below:

Explanation:

First, execute the two multiplication operations:

`color(red)(5) * color(red)(4) - color(blue)(6) * color(blue)(9) + 5 => color(red)(20) - color(blue)(54) + 5`

Next, execute the Addition and Subtraction left to right:

`color(red)(20) - color(blue)(54) + 5 => -34 + 5 => -29`