三位数加减法的笔算(不进位不退位)练习.ppt

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,0,5,7,750,0,7,5,570,9,9,4,499,0,2,1,120,1,3,6,631,0,3,6,630,360+420,780,420-360,60,540+430,970,540-430,110,120+340,460,450-120,330,自行车比风扇贵多少元？,450-30,420,8,3,7,738,9,5,1,159,4,7,3,374,9,9,3,399,2,6,6,662,5,9,6,695,7,8,5,6,1,590-480,110,480-340,140,600,300,900,400,200,200,300,200,100,400,600,1000,400,500,900,600,400,200,700,200,500,600,300,900,四位数,三个数不相同,400,300,300,200,600,600,198+109+69=,376（元）,够,376400,