想一想,算一算
🐶🐶🐶 🐶
□+□=□
🍐🍐 🍐🍐🍐
□+□=□
ll ll
□+□=□
🎈 🎈🎈🎈
□+□=□
🐶🐶🐶 🐶
□+□=□
🍐🍐 🍐🍐🍐
□+□=□
ll ll
□+□=□
🎈 🎈🎈🎈
□+□=□
答案:
3+1=4,2+3=5,2+2=4,1+3=4
算一算
1+1=
1+2=
1+3=
1+4=
2+2=
2+3=
3+2=
4+1=
1+1=
1+2=
1+3=
1+4=
2+2=
2+3=
3+2=
4+1=
答案:
2,3,4,5,4,5,5,5
在( )里填上合适的数
1+( )=4
2+( )=4
( )+4=5
( )+2=3
( )+2=5
1+( )=5
( )+3=4
1+( )=4
2+( )=4
( )+4=5
( )+2=3
( )+2=5
1+( )=5
( )+3=4
答案:
3,2,1,1,3,4,1
解析:4-1=3,4-2=2,5-4=1,3-2=1,5-2=3,5-1=4,4-3=1
解析:4-1=3,4-2=2,5-4=1,3-2=1,5-2=3,5-1=4,4-3=1
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