4, 5, 6 Addition Set 1

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
8+6=
8+5=
5+1=
4+0=
4+1=
4+2=
6+3=
4+3=
4+4=
4+5=
4+6=
6+5=
0+5=
5+3=
6+1=
2+5=
4+5=
6+6=
4+6=
5+6=
6+7=
0+6=
2+6=
9+6=
5+5=
9+5=
4+7=
4+8=
4+9=
5+7=