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What is 18 though 21?
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What is 18 though 21?

What is 18 though 21?-example-1
User RMcLeod
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18. -500 + 250 = -250
19. -550 - 300 = - 850
20. 116 - (-50) = 116 + 50 = 166
21. 2500 + 1800 - 2200 = 2100
User Jackarms
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