448+370=?,211+489=?,930+788=?
784-75=?,965-600=?,1309-717=?
35+?=803,295+?=737,1221+?=1618
43*7=?,9*88=?,867*4=?
408/3=?,456/8=?,810/6=?
---
?-259=852-490,123+116+462+321=?
796-242=?+355,520+572+348-1248=?
269+?+303=995,1014+539-703-669=?
206+?-514=466,1961-680-573-493=?
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