Problem
First name
Amelie and Reuben
School
St Anne's CofE Primary School
Country
Age
0
We knew 6 and 9 added up to 15.Then we knew 9 and 11 made 20.That helped us find out 11 and 12 (23) 12 and 4 (16) 4 and 14 (18).Finally we did 14 and 7 to get to 21.Altogether we used our number bonds.