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1、Four short words sum up what has lifted most successful individuals above the crowd: a little bit more.-author-date小学分数加减混合运算习题分数加减混合运算习题 - = - + + = =- + + + = - = = = = = = = = = = = = = = = = = = = = = = = = += =+= = += = = = = 5- = 1 - - =+ = + = + = 0.25= = + = + = + = += -= + = += + 1 1 + = +
2、= + = 1 + = 1= = + = = = + = 1 = + = - = = = + + 1= - = + = + = + = - = - = - = += = 1 5= 1= + - = - + =+ - + 0.25+ + + + 10- () () () 6() - ( + ) + + - + 25 - - + - - ( - ) 5 + + +() () () 2 + 1 1= = + + += () 3 - - - 1 2 1557 131 1.8750.25= = = =1= 4() 2- - 0.8+0.2 ( ) () 2 3(- ) 6() + + + + + + -(- ) + -(+ ) + - + + + + + () () 1 + + +- () () ()5 () 3(+ ) () 2= () () 10() + + = (+)() ()+()=-