1 to 20 add & subtract (inc. missing nos.)

Created to complement the 'Deep Understanding of the numbers 1-20 ’ video from RebeccaTheMathsLady’s YouTube series for the parents of the children who have never understood maths.

4 sets of ten questions, each including 5 addition and 5 subtraction questions, some of which need answers and some of which needed missing numbers filled in.

This worksheet contains a link to an interactive worksheet in Jeff’s Notebooks on TES which can be used to generate more similar worksheets . This resource was designed and created by Rebecca and Jeff together and is available for free on both their sites.