Problem
First name
Alice and Saba
School
St Helens C of E Primary, Abbotsham
Country
Age
11
First of all we drew some squares with numbers on to repesent the envelopes. We started off with 7+o=7 in the first envelope. Then we desided to do 5+3=8. our next choice was 9+4=13. next we added 8+6=14, and last of all we put together the numbers 1+2=3.we found two more ways and they are:
Way2
5+2=7 7+1=8 9+4=13 3+0=3 8+6=14
Way 3
4+3=7 8+0=8 7+6=13 1+2=3 9+5=14
There are no other combinations because we tried to use 6+1=7 but we needed to ues a digit more than once.