Round 98 to the nearest 10. This is 100. Call this a. Calculate b which is a - our original number: b = 100 - 98 b = 2 We can use this formula:...
987 x 9 ------ Break apart 987: 900 + 80 + 7 So we have: 900 * 9 = 8100 80 * 9 = 720 7 * 9 = 63 Add them up and we get 8,883 [MEDIA]
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