下面竖式中两个加数的各个数位上数字的和是 ________ 。
1+3= ．
= ．
口算 55+37= 80﹣26= 1400﹣800= 2+210= 9+300= 82+0= 1﹣= += ﹣= ．
口算我最棒.+=+=﹣=﹣=+= 1+=﹣0.2=+0.3=+= 1﹣+=﹣﹣=++=
==== 0.32===== 2x+x=
+3= ．
= ．
= 
+
= 
﹣
= ．
+
=
+
=
﹣
﹣
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+
= 1+
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﹣0.2=
+0.3=
+
= 1﹣
+
=
﹣
﹣
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+
+
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=
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= 2x+x=
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