Question

Revision Exercise
1. Fill in the blanks and write the property used in each
of the following
a. 7 + [(-5) + (-8)] = + (-8)
b. 0 + (-18) = (-18) +
c. 99 (-88) =
d. 17 x (82 - 45) = - (17 x 45)
e. 23 x (34 x 12) =
x 99
x 12​

Answer 1

properties:

a. associative

b. commutative

c. closure

d. associative

e. associative

blanks:

a. 7

b. 0

c. just multiply the two

d. 82

e. just put the bracker and on 23 × 34 and leave 12 out of it

hope it helps