把小树向右平移4格，画出平移后的小树．说说哪些线段在平移前后的小树图形中是互相平行的．
直接写得数．﹣= 1﹣=+=﹣=+=+7= 4﹣=﹣0.9=﹣=+=﹣1=++=
口算下面各题．+=﹣=+=﹣= 6.4+2.3= 7.3﹣0.4= 1.1+2.8= 707÷7= 360÷3= 93÷3= 40×25= 720÷4= 80﹣25= 36×0=
直接写得数 1﹣= 12﹣12×0.1=﹣= 0.3+= 1.66÷2=+= 7﹣= 23+52=﹣0.75= 50×25×1.2=
直接写出得数．======== 1.2×0.5= 0.16÷0.8= 0.32= 53=
计算．﹣﹣=﹣﹣=+﹣=
﹣
= 1﹣
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+
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﹣
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+
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+7=
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﹣0.9=
﹣
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+
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﹣1=
+
+
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+
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﹣
=
+
=
﹣
= 6.4+2.3= 7.3﹣0.4=+=﹣=+=﹣= 6.4+2.3= 7.3﹣0.4=
= 12﹣12×0.1=
﹣
= 0.3+
= 1.66÷2=
+
= 7﹣
= 23+52=
﹣0.75= 50×25×1.2=
=
=
=
=
=
=
=
=
﹣
﹣
=
﹣
﹣
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+
﹣
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