Question 24: Each bead has a value according to its colour. The value of the first three strings of beads are given. What is the value of the last string?

Predict: I thought this would be about addition.

Clarify: I had nothing to clarify.

Find the big picture: What does the last string’s beads add up to?

Solve:

First I worked out what the value of each bead was. It took a while, but eventually I worked out that the dark read beads equal 4, and the white ones equal 1.

Then for the third string, I worked out that 1+1 was two, and 2+2+2=6+2 is 8, so the pink beads equal 2.

For the last string I worked out that 1+2+2+4+4 was 13, so 13 is the answer!

Summary: I used the guess, check and improve method.