(共16张PPT)
0的加、减法
苏教版一年级上册第七单元
3.想一想,填一填。
3 - 2 =
4 - 3 =
5 - 4 =
3 - 1 =
2 - 1 =
5 - 2 =
4 - 1 =
5 - 3 =
4 - 2 =
3.想一想,填一填。
2 + 2 =
4 + 1=
3 + 2 =
3 + 1 =
2 + 1=
1 + 2 =
1 + 1 =
2 + 3=
1 + 3 =
一共3人,走了3人,还有……
3 - 3 = 0
0 + 3 =
3 - 0 =
- =
- =
0 + 4 =
+ =
- =
- =
5 - =
再见啦
3
⊙
3
Ms
2
畫
韵
2+0=■
1-0=■
1-1=
4-0=
2-2=
0+1=
4十0=
2+0=
3+0=
0+4=
0+2=
十3=
4-0=
2-
0=
3-
4-4=
2-2=
3-3=
=0
≠0
大
0
9
5.
里可以填几?
□ =0
0十□=■
□-0=□