Problem
First name
2 year 6 children
School
Marston Montgomery
Country
Age
0
Dear Nrich maths,
We have the solution for fifteen cards stage 2 level 1. We did trial and error several times until we got the answer to the question.
The numbers on the first two cards add to 15 .
The numbers on the second and third cards add to 20 .
The numbers on the third and fourth cards add to 23 .
The numbers on the fourth and fifth cards add to 16 .
The numbers on the fifth and sixth cards add to 18 .
The numbers on the sixth and seventh cards add to 21 .
What are my cards?
They were 6 9 11 12 4 14 7 and they’re in order.
From Toby and Georgina YR6 Marston Montgomery Primary school, Derbyshire.