文档介绍：六年级数学口算速算练****题
（一）
+= -= += -=
+= -2= 1-= +=
-= -= += -=
-= 5+= += -=
4+= -= -= +=
-= += -= 5-=
×= ×3= ×= 50×=
×25= ×4= ×= 10×=
×6= ÷12= ÷= ÷=
0÷= ÷11= ×= ×=
-= -= += -=
+= -= -= +=
-= 1-= ×8= ×8=
×2= 5×= ×= ×=
×0= 10×= ×7= ×100=
×4= ×4= 4×= ×8=
×4= ×0= ×50= 30×=
×3= ×2= ×= ×=
1-= ×= ÷= 0×=
+= += × = 4×=
3÷6= ÷9= ×4= 6-=
+= ×4= ×0= 0÷=
×= 1×=