Home > Math > Counting > Count the Numbers Advance > Finding Missing Number — 1-100 > Find The Missing Number - Week ThreeFind The Missing Number – Week Three ■Count the Numbers Advance■Finding Missing Number — 1-100 Want more content like this? Access over 6,000 exclusive items. Members only. $4.16/month when paid annually $8.99/month Feb 6, 20150 comments Missing number worksheets help reinforce kids ability to tell numbers in order. Get your printable worksheet, today! Get it now!