1 and 5.
3
Yes
61.
The answer depends on whether you mean the additive opposite (+16) or the multiplicative opposite (-1/16).
16
603 541 2976
19
The smallest number they can go into is 12.
the number 8 is 16 more than its opposite
no because 2 times 2 equals 4
The mixed number of 2.1 is 2 1/10