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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,六、6,和7的,加减法,练习课,把右边的,6,只熊猫圈在一起。,在左数第,7,只熊猫的上面画,1,个 。,3.,7.,哪两张卡片上点子的数相加得,6 ?,哪两张卡片上点子的数相加得,7 ?,4 + 2 = 6,2 + 4 = 6, ,2,5,7,5,2,7,7,2,5,7,5,2,3,4,7,4,3,7,7,3,4,7,4,3,有,2,个黑色图形，有,5,个白色图形。,有,4,个三角形，有,3,个正方形。,三、知识运用,可以怎样列算式？,7,-,2,7,-,43 + 36,-,2,3,4,5,6,6,-,5,2 + 5,5,-,3,7,-,7,0127,6.,8.,拿出两张数字卡片，用大的数减小的数。,7,-,2,=,5,7,2,5,4,3,1,0,6,7 5 =,0,+ 7,=,1 + 6 =,4 2 =,2 + 4 =,7,-,4 =,5,0 =,6,-,3 =,4 + 5 =,7 - 3 =,6 -,4 =,5 - 3 =,11.,+,=,6,1,7,+,5,1,6,2,=,7,=,+,4,3,7,2,=,6,=,1,5,=,+,3,2,5,4,=,7,=,1,4,=,3,6,=,5 1 =,7 4,=,2 + 5 =,6 2 =,2 + 3 =,6 + 0,=,4,2 =,4 + 3,=,6,-,=,2,4,-,=,6,4,2,4.,4 + =,3,7,+,=,3,4,7,7,-,=,-,=,5.,5,7,2,2,5,3 + 4 = 4 + 2 = 7,-,3 =,4,-,2 = 7,-,4 = 2 + 5 =,7,-,5 = 1 + 6 = 6,-,4 =,5,-,0 = 6,-,3 = 5,-,3 =,7,6,4,2,3,7,2,7,2,5,3,2,9.,-,=,14.,用下面的数字卡片,你能摆出几种算式,?,+,=,2,5,7,-,=,5,1,4,+,=,2,3,5,-,=,5,2,3,+,=,2,1,3,-,=,5,3,2,+,=,3,4,7,7,6,1,2,5,7,0,6,3,1,4,摆一摆，填一填。,( ),个,5,( ),个,6,( ),个,8,
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