There were two things to discover here:
It took quite a lot of work to solve this seemingly easy problem as Amelia from Belchamp St. Paul Primary School shows in her calculations:
I tried lots of different combinations of numbers and the closest number I got was 101. Then I tried this:
Tom from Brecknock Primary School used this strategy:
First I tried 40+39+24=103 then I tried 40+39+23=102
Next I tried all the possible ways to get rid of the extra 2.
I tried 100-16*2=68
I know that 17*4=68, so I added 68+32=100
Their solution: 16+16+17+17+17+17=100
Are there any more possibilities? Are we sure?