Predict: i predict that i will have to problem solve and use addition.

Read: each bead has a value according to its colour. The values of the first three strings are given. What is the value of the last string?

Clarify: nothing to clarify.

Big question: What is the value of the last string?

mathematical toolbox: i used guess check and improve.

Solve: to solve this question I first looked at the first string and saw 4 gray beads and 1 dark bead the answer was 22 but to first get 22 I had to work out what the beads are worth so I first the gray beads I found worth 5 and so the dark one had to be worth 2. Next it came to 21, there was 2 white beads, 1 gray bead and 2 dark beads. I added the 2 beads I know and it came to 9 the left over was 12 so because there was 2 of the white beads the answer was 6. I already knew the next one so i went onto the last one, there was 1 white bead, 3 gray beads and 1 dark bead, I worked out the answer was 23.

Summery: when I first saw the question i couldn’t work it out but now i know how to do it and the answer 23 turned out to be correct.