Let $a$a be a positive number and $b$b a negative number.
Will $a+a$a+a be a positive number, a negative number or zero?
Will $b+b$b+b be a positive number, a negative number or zero?
Consider the following sentence:
$-6$−6 is added to the product of $2$2 and $-4$−4.
The sum of $-8$−8 and the quotient of $-40$−40 and $4$4
The product of $3$3 and $-6$−6 is decreased by $-9$−9.
Understand operations on fractions, decimals, percentages, and integers