文档介绍：五年级数学口算
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4-=
82-= 19+=
= += -= -= += -= 1-= += 5×400= += 187÷1000= 1+= ×10= 75÷10= ÷= ×7= ×7= ×8= ×8= ×2= 5×= ×=
×= ×0=
×7= ×100=
×4= ×4= 4×= 430-250= += -= 7200÷800= += -= 17×300= -= += 600×700= += += 670+250= += -6= 8500÷500= -= +=
25×100= -= 2+= 380-290= +=
+= 3500÷70= +3= +=
7500÷250= +1= -= 450+780= += 3+= 630÷9= -= -5= -= -= += 1-= += +=
÷9=
+4= 4-= += += += 23×100= -= 480÷40=
+= 125×80= ÷10= += 70×12=
×100= -= -= ×10= 10+= 1-= ×1000=
+= += ×100= -= -= 63÷100= -= += 80÷1000= += -= 30×100= -= += += 5+= 1-=
+= += += += 1-= 8-= -= += += -= -= -= -= 10+= -= += += -= -= 1-= -= -= -= += -= -= +0= ×8= ×4= ×0= ×50= 30×