True. 9 + 8 + 1= 18 and 9 + 1 + 8 =18.
True. Addition of natural numbers obeys associative and commutative property.
false
True
True, one million equals one million.
true
The question makes no statement; so as it stands, there's nothing there yet to be true or false.
False. When using different operators, the order of the operations determines the result. (7-1) plus 8 = 14 while 7- (1 plus 8) = -2
false 1 quart = 0.94 Liter 1 Liter = 1.05 quart
False. 1 meter = 100 centimeters.
False
As written, that is true. (7 - 1) + 8 = 7 - (1 + 8) is not true.