Freebie Friday

Happy Friday, Everyone!

Once again, I'm linkin' up with

TBA's

Can you believe  this is the last Friday  in the month of June?   Even more surprising,  I'll be in full "school" mode in 4 weeks. Yikes!
Anyway... you came for a freebie  and I have a lovely one for you this week.
It addresses the  common core standard 1.OA.D.8 which reads Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. 
This is it...

and you can find it HERE.
Now if you could please pardon me, I really need  to get back to this mess my classroom.

Enjoy your weekend, friends!