直接写出得数．2005+620= 1﹣0.09= 0.45×101= 2÷0.02=×= ÷= += 5﹣=7×÷7×= 1÷×= 4.8×11﹣4.8= 1﹣÷=
直接写出得数．========
如果从甲袋中取出千克放入乙袋中．两袋的重量刚好相等．原来甲袋比乙袋重多少千克？
看谁算得快．========
计算．=+===﹣=== 1=
口算．．
×
= 
÷
= 
= 5﹣
=
÷7×
×
= 4.8×11﹣4.8= 1﹣
÷
=
=
=
=
=
=
=
=
千克放入乙袋中．两袋的重量刚好相等．原来甲袋比乙袋重多少千克？
=
=
=
=
=
=
=
=
=
+
=
=
=
﹣
=
= 1
=
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