Home > Math > Addition > Addition Basic > Addition Facts Sums to 20 > Sums to 20 Worksheet - #4Sums to 20 Worksheet – #4 ■Addition Basic■Addition Facts Sums to 20 Want more content like this? Access over 6,000 exclusive items. Members only. $4.16/month when paid annually $8.99/month Sep 9, 20140 comments Are you teaching addition to kindergarten or first grade students? Then use our free, printable addition worksheets! Get it now!