This 20 question Google Doc worksheet on Multiplying Mixed Numerals includes an answer key. The first question is instructional. Teachers may opt to administer the attached Easel version of this worksheet. The answer key is provided on the original document.

This can be purchased as part of a bundle which also includes an Instructional Google Slides Presentation and a Google Doc Quiz with an answer key:

https://www.teacherspayteachers.com/Product/Math-Multiplying-Mixed-Numerals-Google-Bundle-6680958

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