(i) (-5) + (-8) = (-8) +\(\underline{(-5)}\)[Commutative property]
(ii) -53 + \(\underline{0}\) = -53[Zero additive property]
(iii) 17 +\(\underline{(-17)}\) = 0(Additive identity]
(iv) [13 + (-12)] + \(\underline{(-7)}\) = 13 + [(-12) + (-7)] [Associative property]
(v) (-4) + [15 + (-3)] = [-4 + 15] + \(\underline{(-3)}\)[Associative property]
Write equations for the following statements:
(i) The sum of numbers x and 4 is 9.
(ii) 2 subtracted from y is 8.
(iii) Ten times a is 70.
(iv) The number b divided by 5 gives 6.
(v) Three-fourth of t is 15.
(vi) Seven times m plus 7 gets you 77.
(vii) One-fourth of a number x minus 4 gives 4.
(viii) If you take away 6 from 6 times y, you get 60.
(ix) If you add 3 to one-third of z, you get 30