21+6
27
9*2
18
90-20
70
50/5
10
86+16
102
8*6
48
98-66
32
56/8
7
234+69
303
16*9
144
532-268
264
144/12
12
879+88
967
86*4
344
874-269
605
425/5
85
5736+4629
10,365
256*6
1536
12,524-4,637
7887
1368/4
342