30.9 * 3000 – 10.1 * 1100 + 8298 – 4302 = _________?

Simplification and Approximation 28/01/2021

A. 80000
B. 90000
C. 105000
D. 85000

Explanation:

9 * 3000 – 10.1 * 1100 + 8238 – 4302

31 * 3000 – 1010 * 11 + 8298 – 4302
93000 + 8298 – 11110 – 4302 = 101298 – 15412
= 85886 = 85000

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