减 法
用“原来有几人,走掉几人,现在还剩几人”来说
乘车游戏:
乘车游戏:
10
乘车游戏:
10
10 5 5
乘车游戏:
乘车游戏:
5
乘车游戏:
5
5-5=0
我是口算王:
5 - 4=
9 - 2=
6 - 3=
8 - 6=
10 - 1=
7 - 2=
8 - 3=
6 - 6=
1
9
7
3
2
0
5
5
1
7-□=3
5-□=3
6-□=3
4
3
2
4
□-4=1
□-2=3
□-3=4
5
5
7
10 – 5 =
7 – = 5
– 1 =6
9 – = 9
– 4 = 5
6 – =
?里填几
10 – 5 = 5
7 – = 5
– 1 =6
9 – = 9
– 4 = 5
6 – =
?里填几
10 – 5 =
7 – 2 = 5
– 1 =6
9 – = 9
– 4 = 5
6 – =
5
?里填几
10 – 5 =
7 – = 5
7 – 1 =6
9 – = 9
– 4 = 5
6 – =
2
5
?里填几
10 – 5 =
7 – = 5
– 1 =6
9 – 0 = 9
– 4 = 5
6 – =
5
2
7
?里填几
10 – 5 =
7 – = 5
– 1 =6
9 – = 9
9 – 4 = 5
6 – =
0
2
7
5
?里填几
10 – 5 =
7 – = 5
– 1 =6
9 – = 9
– 4 = 5
6 – =
0
2
9
7
5
?里填几