Math - Arithmetic

plus, minus, multiply and divice symbols

Arithmetic is the study of numbers and basic operations like addition, subtraction, multiplication and division.

Addition

Addition is the process of combining two or more values.
The result of a addition = "sum"

1+1=28+4=12−12+37=25−128+371=24342.4+6.27=48.67−21.72+10.5=−11.221 + 1 = 2\\ 8 + 4 = 12\\ -12 + 37 = 25\\ -128 + 371 = 243\\ 42.4 + 6.27 = 48.67\\ -21.72 + 10.5 = -11.22


Subtraction

Subtraction is the process of compute the difference between two or more values.
The result of a subtraction = "difference"

2−2=024−6=18−7−3=−10−14−32=−465.325−1.125=4.2−32.64−32.64=−64.1282 - 2 = 0\\ 24 - 6 = 18\\ -7 - 3 = -10\\ -14 - 32 = -46\\ 5.325 - 1.125 = 4.2\\ -32.64 - 32.64 = -64.128


Multiplication

Multiplication is the process of repeating a sum of the same number.
The result of a multiplication = "product"

10×5=504×8=32−12×3=−36−7×−5=3510 \times 5 = 50\\ 4 \times 8 = 32\\ -12 \times 3 = -36\\ -7 \times -5 = 35


Division

Division is the process of distributing a quantity into equal parts or groups.
The result of a division = "quotient"

36÷6=655÷4=13.75−100÷8=−12.5−128÷−4=3236 \div 6 = 6\\ 55 \div 4 = 13.75\\ -100 \div 8 = -12.5\\ -128 \div -4 = 32

Law of Signs

Addition & Subtraction

(−)(−)=(−)(+)(+)=(+)(−)(+)=(−)(+)(−)=(+)(-)(-) = (-)\\ (+)(+) = (+)\\ \LARGE(-)\normalsize (+) = (-)\\ \LARGE(+)\normalsize (-) = (+)


Multiplication & Division

(−)(−)=(+)(+)(+)=(+)(−)(+)=(−)(+)(−)=(−)(-)(-) = (+)\\ (+)(+) = (+)\\ (-)(+) = (-)\\ (+)(-) = (-)