How do you find the sum of #10-21#? Algebra Properties of Real Numbers Addition of Integers 1 Answer MJohnson · Stefan V. May 4, 2018 #10-21= -11# Explanation: #21-10=11# so #10-21=-11# Answer link Related questions What are integers? How do you add #-5+2# using the numberline? What is the commutative property of addition? What is the associative property of addition? What is the identity property of addition? How do you simplify #9+(1+22)# using the properties of addition? Which property of addition is #2,214+0#? What is the new temperature in Chicago, if one morning it was #-8^\circ F# and over the next... How do you find the sum of the cubes of the integers in the interval -15 and 17? What are Integers? See all questions in Addition of Integers Impact of this question 3035 views around the world You can reuse this answer Creative Commons License