五年級小學(xué)數(shù)學(xué)口算題300題(完整版)
【正文】 512= 2 + 4/9 = 3 2/3 = 3/4 1/2= 1/6 + 1/2 1/6 = (+)= 247。35= 1247。20= 200= = 247。= 247。4= 0= = 3= = 8= 50= +＝ ＝ +＝ ＝ 1＝ +＝ ＝ +＝ ＝ ++＝ 1＝ ＝ ＝ +＝ ＝ ＝ ＝ +＝ 1＝ －(3+)= 7247。5+1247。= ＝ 3＝ ＝4247。= 3/4 + 1/4 = 2 + 4/9 = 3 2/3 = 2 1/6 1/3 =3/4 1/2= 1/6 + 1/2 1/6 = (+)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 7/10 = 8= = 0= 1= 4247。= 3/4 + 1/4 = 1/6 + 1/2 1/6 = (+)
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鄂ICP備17016276號-1