How can I easily concatenate typescript variable with string in html tag?

This is my html code with ionic 2

<ion-item *ngFor="let job of allFreeJobs;let elementid=index">
<p>
<span id="m{{elementid}}" (click)="showMore(elementid)" color="primaryAdmin">...<ion-icon name="bicycle"></ion-icon></span>
</p>
</ion-item>


From the code above this is my area of concentration:

... id="m{{elementid}}" ...


How can I easily concatenate m with the variable elementid? This is not working for me.

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