《2025年口算练习册江苏凤凰教育出版社一年级数学上册苏教版》

答案： $\boxed{\begin{aligned} 3+1=4\\ 3+2=5 \end{aligned} }$ $\boxed{\begin{aligned} 5-1=4\\ 5-2=3 \end{aligned} }$ $\boxed{\begin{aligned} 3+2=5\\ 5-2=3 \end{aligned} }$
$\boxed{\begin{aligned} 1+2=3\\ 3+2=5 \end{aligned} }$ $\boxed{\begin{aligned} 5-2=3\\ 3-2=1 \end{aligned} }$ $\boxed{\begin{aligned} 1+2=3\\ 3-1=2 \end{aligned} }$
$\boxed{\begin{aligned} 4+0=4\\ 0+4=4 \end{aligned} }$ $\boxed{\begin{aligned} 3+1=4\\ 1+3=4 \end{aligned} }$ $\boxed{\begin{aligned} 5-0=5\\ 5-5=0 \end{aligned} }$

1+1=2
2-1=1
3-2=1
2+2=4
1+2=3
3-1=2
2+1=3
4-2=2
1+3=4
3+1=4
1+4=5
4-1=3
4-3=1
5-1=4
4+1=5
5-2=3
3+2=5
5-3=2
4+0=4
5-4=1
5-5=0

答案： 解析：这些题目都是基础的加减法口算题，考查的是对加减法运算的掌握程度。
答案：
1 + 1 = 2
2 - 1 = 1
3 - 2 = 1
2 + 2 = 4
1 + 2 = 3
3 - 1 = 2
2 + 1 = 3
4 - 2 = 2
1 + 3 = 4
3 + 1 = 4
1 + 4 = 5
4 - 1 = 3
4 - 3 = 1
5 - 1 = 4
4 + 1 = 5
5 - 2 = 3
3 + 2 = 5
5 - 3 = 2
4 + 0 = 4
5 - 4 = 1
5 - 5 = 0