add
subtraction
add again
easy times
subtraction again
100
50+40
What is 90
100
40-20
What is 20
100
7+5
What is 12
100
0x6
What is 0
100
9-7
What is 2
200
200+349
What is 549
200
77-31
What is 46
200
56+13
What is 69
200
10x7
What is 70
200
70-30
What is 40
300
334+221
What is 555
300
128-90
What is 138
300
345+345
What is 390
300
200x4
What is 800
300
600-560
What is 40
400
1387+312
What is 1699
400
754-402
What is 352
400
2435+1213
What is 3648
400
100x10
What is 1000
400
4321-2110
What is 2211
500
2543+3012
What is 5555
500
46821-23410
What is 23411
500
12345+24681
What is 37026
500
2000x5
What is 10000
500
98765-87654
What is 11111
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