Jegro catalogus
01.01 Mathematics
Abacus 5 x 20 teacher
Teach place value, addition and subtraction and visualise (large) numbers. Demonstrates the principle of ‘borrowing’ from the next column. The beads that are not used disappear behind the wooden partition. This abacus represents units, tens, hundreds, thousands and ten thousands. It contains 5 x 20 beads in 6 colours grouped in tens. Contents: wooden holder with partition (29 x 21.5 x 9 cm) 100 flat plastic beads in 6 colours (2.6 cm Ø)
3018301 Abacus 5 x 20 teacher
Abacus 5 x 20 pupils
Abacus 5 x 10 teacher
Learn place value, addition and subtraction and visualise (large) numbers. Practise the principle of ‘borrowing’ from the next column. The beads that are not used disappear behind the wooden partition. This abacus represents units, tens, hundreds, thousands and ten thousands. It contains 5 x 20 beads in 6 colours grouped in tens.
Teach place value, addition and subtraction. This abacus represents units, tens, hundreds, thousands and ten thousands. It contains 5 x 10 beads in 5 colours grouped in tens.
Contents: wooden holder with partition (18 x 15 x 6 cm) 100 flat plastic beads in 6 colours (1.5 cm Ø)
Contents: wooden holder with partition (19 x 21 x 9.5 cm) 50 flat plastic beads in 5 colours (2.6 Ø)
3018321 Abacus 5 x 20 pupils
3018303 Abacus 5 x 10 teacher
Jegro Catalogue
37
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