1. 数一数,每个圈里各有几只鸭子?写一写。

答案
![img alt=1]
解析
5
3
0
3
0
2. 看尺子,填一填。

答案
0 5
3. 看谁算得都对。
$0 + 4 = $ $5 - 0 = $ $2 - 0 = $ $2 + 0 = $
$3 - 0 = $ $0 + 0 = $ $5 - 5 = $ $0 - 0 = $
$0 + 4 = $ $5 - 0 = $ $2 - 0 = $ $2 + 0 = $
$3 - 0 = $ $0 + 0 = $ $5 - 5 = $ $0 - 0 = $
答案
4 5 2 2 3 0 0 0
4. 先说一说图表示的意思,再列式计算。

5 + _________ = _________

_________ - _________ = _________
_________ - _________ = _________ _________ - _________ = _________
5 + _________ = _________
_________ - _________ = _________
_________ - _________ = _________ _________ - _________ = _________
答案
(说一说略)0 5 3-3=0 4-2=2 2-2=0
解析
0 5
3 - 3 = 0
4 - 2 = 2
2 - 2 = 0
3 - 3 = 0
4 - 2 = 2
2 - 2 = 0
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