45+8= 36+12= 42-15= 17+66= 59+30= 56+22= 77+0= 368-368= 100-51= 80+13= 51-47= 600+230= 31-21= 94-67= 70-34= 52-16= 70-19= 22-8= 53-47= 8×6= 77+33= 500-120= 73+37= 51-40= 4×7= 87-29= 11+99= 9×4= 166-50-50= 572+44+56= 171-84+84= 41-(35+6)= 47+95-47= 80+80+80= 411-352-48= 196+197+198+199= 58-120+62+77=
45+8=53, | 36+12=48, | 42-15=27, | 17+66=83, | 59+30=89, |
56+22=78, | 77+0=77, | 368-368=0, | 100-51=49, | 80+13=93, |
51-47=4, | 600+230=830, | 31-21=10, | 94-67=27, | 70-34=36, |
52-16=36, | 70-19=51, | 22-8=14, | 53-47=6, | 8×6=48, |
77+33=110, | 500-120=380, | 73+37=110, | 51-40=11, | 4×7=28, |
87-29=58, | 11+99=110, | 9×4=36, | 166-50-50=66, | 572+44+56=672, |
171-84+84=171, | 41-(35+6)=0, | 47+95-47=95, | 80+80+80=240, | 411-352-48=11, |
196+197+198+199=790, | 58-120+62+77=77. |
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