242 -630 = -388
242-630 = -388
872
It is: 210--630 = 840
170
630
567
There are 100 centimetres in one metre. Therefore, 3 metres minus 242 centimetres is equal to (3 x 100) - 242 = 58 centimetres.
It is 630/90 = 7 and 7 minus 2 = 5
x - 15% = 630 so 85% of x = 630 x*85/100 = 630 x = 630*100/85 = 741.1765 approx.
x - 360 = 270 x = 270 + 360 x = 630
To completely eliminate the need to worry about what 0 x 1is, and risk confusing 0 or Undefined, you should follow PE(MD)AS. (The M and D can be either MULTIPLY or DIVIDE can be switched, depending what comes first in the order of the equation.) Thus, 242 - 242 (1) = two-hundred forty-two minus two-hundred forty-two times one 242 - 242 = two hundred forty-two minus two-hundred forty-two. 0= zero :)