Lesson 6 of 8
How you'll be checked
When you plot a number and press Check, Oli looks at two rules.
Rule 1, Exact beads: every bead must be in the right place. Even one wrong bead means try again.
Rule 2, Start from the left: start on the bar of the first digit, then go right. Only touch the bars the number needs: skip bars where the digit is 0 and don't touch them at all, not even to put a bead back.
You can move beads and fix them as much as you like before you press Check. Which finger you use is not checked, but Oli will show you the best one.
See the rules
Press Next step to watch each rule.
Rule 1: Exact beads
✓ Here is 128. Every bead is right.
Step 1 of 3
Rule 2: Start from the left
To plot 128, start with the first digit: 1 on the Hundreds bar.
Step 1 of 5
Only touch the bars you need
To plot 105, start with 1 on the Hundreds bar.
Step 1 of 4