加减乘除计算公式 加减法公式：(加数)+ (加数)=(利 (a) + (b) ()+(b)= (a) + (): =(c) = (c) =(c), 解：(a) = (c) — ( b )。 解：(b ) = ( c ) — ( a )o 乘法公式：(乘数)X(乘数)=(积) (a) X (b)= ()X(b)= (a) X ()= (c) (C), (c), 解：(a ) = ( c ) ( b )。 解：(b ) = ( c ) •? ( a )。 除法公式： 1、(被除数)十(除数)= (商) (a) 4- (b) = (c) ()-(b) =(c) 解:(a) = (c) X ( b )o ) = (c) (a) 4- ( 解：(b ) = (a ) -r (c) (商).... ・・・・・(余数) 2、(被除数)一(除数)= (a) ~ (b) = (c)ooooooo (h) ()-T- (b) = (c)ooooooo (h)解：(a)=(b) X(c) +(h) (a ) 4- ( ) = (c)<»oooooo (h)解：(b)=[(a) — (h) ] -r(c) 加减法混合算式：从前向后的顺序计算。a+b-c = d 乘除法混合算式：从前向后的顺序计算。aXb-rc = d 加减乘除混合算式：有括号先算括号里，没有括号先算乘除，后算加减。 本文来源：https://www.wddqw.com/doc/496e469ef7335a8102d276a20029bd64793e6268.html