If you mean 46 * 3 = 138
If you mean 46 + 3 = 49
If you mean 46 - 3 = 43
If you mean<span> 46 ÷ 3 = 15.3
Hope it helped
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Answer:

Step-by-step explanation:
See attached file for complete work.
It's millimeter. the smallest measurement among them.