Do you want an all-in-one worksheet where children can put their knowledge of adding 3-digit numbers and tens crossing 100 to the test? Our Year 3 Add 10s Across a 100 Mixed Activity worksheet is just what you need! This resource combines varied fluency, reasoning and problem-solving questions together in a ready-to-complete format.

Great to use as an independent task in class following your teaching input. Alternatively, this can be used as an intervention task or as a homework challenge too. To make marking easy, an answer page is provided. This can also be used as a peer or self assessment tool too.