2+
1
=3
1
+3
=4
3
+1
=4
答案:
1 3 5 1+3=4 3+1=4
2. 照样子,先画一画,再写出得数。(建议2分钟完成)
□△□|□△□

1+1= □
□△△△□|□□
3+2= □
□△△□|□□
2+2= □
□△□|□△□
1+1= □
□△△△□|□□
3+2= □
□△△□|□□
2+2= □
答案:
2 2
5
4
2 2
3. 算一算。(建议1分钟完成)
1+2=
3+1=
2+3=
2+2=
1+3=
3+2=
1+4=
4+1=
1+2=
3
3+1=
3
2+3=
5
2+2=
4
1+3=
4
3+2=
5
1+4=
5
4+1=
5
答案:
3 3 4 5 4 4 5 5 5
3+1
2+2
1+2
1+3
5
2+2
1+1
4
3
5
4
2
>
22+2
=
41+2
<
41+3
=
45
=
2+32+2
>
31+1
<
34
>
2+13
<
2+25
>
1+24
=
3+12
<
2+1
答案:
> = < = = > < > < > = <
3
+1= 42
+2= 41+
3
= 41+
1
= 22+
3
= 52
+3= 51
+4= 51
+2= 3
答案:
3 2 3 1 3 2 1 1
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