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1,143 - 900 = 243
1143
8,000 minus 900 is 7,100.
7 billion minus 900 million = 6,100,000,000
1224 - 900 = 324
3000 minus 900 = 2100
1400
900 - 20% = 720
1143 - 3668 = -2525
745.14
779
1100
2520