Number Mountains 2



Deriving Number Bonds to 20

Derive the missing number and/or write as many related number sentences as you can think of when you explore number bonds using our Number Mountains. The mountain side shows a missing number that is related to the other two in an addition or subtraction (e.g. 3 + 8 = ?) number sentence.

Play included activities in groups, pairs or individually with or without teacher help. The double-sided card mountains come in a boxed set that exploreNumber Bonds to 20.

Check out the other levels too.  Great for group teaching or group box practise.