苏教版数学一年级上册
得数是9的加法和9减几
1.口算 7＋0= 5＋3= 8－3= 2＋4= 3＋2= 6－2= 5－4= 6＋2= 4＋4= 7－3= 8－6= 1＋6= 2．看图列式。
7 5 8 5 6 4 1 8 8 4 2 7 7 7 1 5 1 8 3 8 8 3 5 8 8 1 7 8 7 1 8 5 3 8 3 5
9 9 8 1
1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 0 0
9–0 = 9–2 = 9–1 = 9–3 = 9–5 = 9–6 = 9–4 = 9–7 = 9–8 = 9–9 =
9 5 9 6 9 3 7 9 9 2 9 4
5 + 2 7 8 - 4 4
3 9 6 + 3 9
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