# What are bead strings in maths?

## What are bead strings in maths?

A maths resource that usually consists of 10, 20 or 100 beads on a string, grouped by colour. They allow children to move the beads whilst counting and visualising groups of ten.

### How many beads does a string have?

Below is a table with string lengths and bead sizes.

12″ 10mm 30
12″ 12mm 25
16″ 4mm 102
16″ 6mm 68

What are the value of beads?

BEAD VALUES: Each bead in the upper deck has a value of 5; each bead in the lower deck has a value of 1. Beads are considered counted, when moved towards the Beamâ€” the piece of the abacus frame that separates the two decks.

A bead is a small, decorative object that is formed in a variety of shapes and sizes of a material such as stone, bone, shell, glass, plastic, wood or pearl and with a small hole for threading or stringing. Beads range in size from under 1 millimetre (0.039 in) to over 1 centimetre (0.39 in) in diameter.

## How do you measure bead hole?

For beads that are a briolette, teardrop or melon shape – the length is used as a measurement from the top to the bottom (perpendicular to the string/cord) of the bead and the width is measured from one end of the bead hole to the other (parallel to the string) from the widest part of the bead.

### How many beads are in one strand?

Remember that 1 inch = 25.4mm. Multiply the length of the strand by 25.4, and divide by the size of the beads in millimeters….