addition
subtraction
multiplication
adding 4 numbers
fast 9's
100
21+36
What is 57
100
14-7
What is 7
100
2x3
What is 6
100
8+5+2+3
What is 18
100
9+6
What is 15
200
35+26
What is 61
200
21-18
What is 3
200
3x4
What is 12
200
17+3+4+6
What is 30
200
9+8
What is 17
300
126+57
What is 183
300
23-9
What is 14
300
5x5
What is 25
300
9+16+1+3
What is 29
300
9+5
What is 14
400
237+504
What is 741
400
47-28
What is 19
400
3x8
What is 24
400
5+3+25+6
What is 39
400
9+7
What is 16
500
832+159
What is 991
500
127-108
What is 109
500
3x6
What is 18
500
20+16+3+14
What is 53
500
9+4
What is 13
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