999x 222 x1 x0 x 333333x 888x 564x 30918- 989090090 =0
HOW and WHY is 0 answer

Dear student,

Any number multiplied to 0 gives result as 0.
999 $\times$ 222 $\times$ 1 $\times$ 0 $\times$ 333333 $\times$ 888 $\times$ 564 $\times$ 30918 = 0
Then 0 - 989090090 = -989090090
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