Mathematics (Basic Rules)
Following are the few general or basic arithmetic rules of the mathematics:-
(1) For Addition & Subtraction:
(1) For Addition & Subtraction:
- (+) + (+)= (+) ; e.g. 4 + 6 = 10 ; 6 + 4= 10
- (-) + (-) = ( - ) ; e.g. -3 +(-5)= -8 ; -5 + -3= -8
- (+) + (-) or (-) + (+) = (either (+) or (-) depends upon the greater number) e.gs. +3 + (-8) = (-5) or -3 + (+8)= (5)
- (+) - (+) = (either (+) or (-) depends upon the greater number on spot first=(+) or on spot second= (-)) ; e.gs. +4 - (+3) = 1 or +4 - (+5) = -1
- (-) - (-) = (either (+) or (-) depends upon the greater number on spot first=(-) or on spot second= (+)) ; e.gs. -4 - (-3) = -1 or -3 - (-4) = 1
- (+) - (-) = (+) ; e.g. +4 - (-3) = 7 or +3 - (-4) = 7
- (-) - (+) = (-) ; e.g. -4 - (+3)= -7 or -3 - (+4)= -7
- For Multiplication:
- (+) × (+) = (+) ; e.g. 9 × (0.6) = 5.4
- (-) × (-) = (+) ; e.g. (-3) × (-5) = +15
- (-) × (+) = (-) ; e.g. (-3) × (+5) = -15
- (+) × (-) = (-) ; e.g. (3) × (-5) = -15
- For Division:
- (+)/(+) = (+) ; e.g. (+10)/(+2) = (+5)
- (-)/(-) = (+) ; e.g. (-10)/(-2) = (+5)
- (-)/(+) = (-) ; e.g. (-10)/(+2) = (-5)
- (+)/(-) = (-) ; e.g. (+10)/(-2) = (-5)