Start by watching this learning video about bonds to 10

Y1 Autumn Block 2 TS7 Number bonds to 10 | Videos & Movies on Vimeo

Then try the attached worksheet. 

If you find this really simple, try this learning video: 

Y2 Autumn Block 2 TS2 Fact families addition and subtraction bonds within 20 | Videos & Movies on Vimeo

Finally, try the attached worksheet.