Easy addition 100
A little harder-200
Difficult addition-300
More Difficult Addition-400
100
2+1=
3
100
3+5=
8
100
7+4=
11
100

9+1=

What is 10?

200
2+3=
5
200
5+1=
6
200
4+2+1=
7
200

8+2=

What is 10?

300
1+3=
4
300
4+5=
9
300
6+6=
12
300

6+5=

What is 11?

400
1+1=
2
400
4+6=
10
400
2+2+1=
5
400

8+6=

What is 14?

500
3+1=
4
500
4+2=
6
500
5+6=
11
500

10+11+

What is 21?

M
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