-10
So, Noriko's account changes by-$10.
1 Complete the table and describe the pattern
in the products.
2 Rewrite the repeated addition expression as a
multiplication expression and find the product.
a. (-2) + (-2) + (-2) + (-2) + (-2)=10(-2) =
b. (-3) + (-3) + (-3) + (-3) + (-3) + (-3) =
c. (-5) + (-5) + (-5)-