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数字认知课件

时间:2023-03-20 19:36:14  热度:0°C

1、教你学识数/1/一只猫/一条鱼/一个篮球/二颗桃/2的组成/2/1 1/1 1/2/3的组成/1 + 2 = (/3 - 1 = (/3/2/3/14/2021/4的组成/4的加减法/3 + 1 = (/2 +( ) = 4/4/2/4 - 1 = (/3/4 - ( )= 2/2/3/14/2021/5的组成/5的加减法/4 + 1 = (/) + 2 = 5/5/3/5 - ( ) = 1/4/)- 2 = 3/5/3/14/2021/6的组成/6的加减法/5 +( ) = 6/2 + ( ) = 6/1/4/3 + 3 = (/6 - ( ) = 1/6/5/6 - 4 =(/2/6 -

2、 ( )= 3/3/3/14/2021/7的组成/3/14/2021/7的加减法/6 +( ) = 7/1/) + 5 = 7/2/3 + 4 =(/7/7 - ( ) = 6/1/) - 2 = 5/7/7 - 3 =(/4/3/14/2021/3/14/2021/8的组成/3/14/2021/8的加法/7 + ( ) = 8/1/) + 2 = 8/6/5 + 3 = (/8/) + 4 = 8/4/3/14/2021/8的减法/8 -( ) = 1/7/) - 6 = 2/8/8 - 5 = (/3/) - 4 = 4/8/3/14/2021/3/14/2021/9的组成/3/14/20

3、21/9的加法/1 + ( ) = 9/8/) + 7 = 9/2/3 +6 = (/9/)+ 5 = 9/4/3/14/2021/9的减法/9 - ( ) = 8/1/) - 2 = 7/9/9 - 3 = (/6/) - 4 = 5/9/3/14/2021/3/14/2021/10的组成/3/14/2021/10的加法/9 +( ) = 10/) + 2 = 10/1/8/7 + 3 = (/10/) + 4 = 10/6/5 + 5 = (/10/3/14/2021/10的减法/10 - ( ) = 9/1/) - 2 = 8/10/10 - 3 =(/7/) - 4 = 6/10/10

4、 - 5 =(/5/3/14/2021/10以内 加法口诀/1+1=2 1+2=3 1+3=4 1+4=5 1+5=6/1+6=7 1+7=8 1+8=9 1+9=10/2+2=4 2+3=5 2+4=6 2+5=7/2+6=8 2+7=9 2+8=10/3+3=6 3+4=7 3+5=8/3+6=9 3+7=10/4+4=8 4+5=9/4+6=10 5+5=10/3/14/2021/减法口诀/1-1=0/2-1=1 2-2=0/3-1=2 3-2=1 3-3=0/4-1=3 4-2=2 4-3=1 4-4=0/5-1=4 5-2=3 5-3=2 5-4=1 5-5=0/6-1=5 6-2=4 6-3=3 6-4=2 6-5=1 6-6=0/7-1=6 7-2=5 7-3=4 7-4=3 7-5=2 7-6=1 7=7=0/8-1=7 8-2=6 8-3=5 8-4=4 8-5=3 8-6

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