![\"\"](\"https:\/\/www.sumomath.com\/content\/wp-content\/uploads\/2020\/01\/beadmovement6.png\")
\t\t\t\t\t\t\t\t\t\t\t<\/p>\nNow that we know how to enter and remove the numbers from 1 to 5 on the abacus,\u00a0we will continue with the remaining numbers 6 to 9. From this point we will be able to represent all 10 digits, 0 through 9, on a single rod of the abacus or soroban. As a reminder, in abacus math we learn to reduce all arithmetic problems to single digit operations. So if we learn how to represent all 10 digits on a single rod, we will be ready to begin learning all the math operations applied to a single rod, or simply one digit at a time. In abacus math lesson 2,\u00a0numbers 6 through 9 are formed by combining the upper 5 bead with 1 or more lower beads on the abacus. Again we want to learn and practice efficient bead mechanics by following the suggested finger movements.<\/p>\n
To enter the numbers 6 to 9 the student should “pinch” all the required beads at the same time by using\u00a0both the index finger and thumb together. To remove the numbers 6 to 9 the student can “reverse pinch” with both the index finger and thumb moving both beads away from the reckoning bar\u00a0at the same time or first move the 5 bead away from the bar with the index finger and then again with the index finger remove the required number of lower beads. The choice of technique is really a student preference but specific problem circumstances may lend to one technique over the other. The best choice is to stay consistent with the technique you choose.<\/p>\n
Let’s add the number 6 to the abacus by pinching both the upper 5 bead and the first lower 1 bead with both our index finger and thumb together. We can now subtract the number 6 by first removing the 5 bead with the index finger and then again with the index finger move the lower 1 bead away from the bar.<\/p>\n
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Next let’s add the number 7 to abacus by pinching both the upper 5 bead and two\u00a0lower beads with both our index finger and thumb together. Now subtract the number 7 from the abacus\u00a0by first removing the 5 bead with the index finger and then again with the index finger move the 2 lower beads away from the bar.<\/p>\n
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Next let’s add the number 8\u00a0to abacus by pinching both the upper 5 bead and 3\u00a0lower beads with both our index finger and thumb together. Now subtract the number 8\u00a0from the abacus by first removing the 5 bead with the index finger and then again with the index finger move the 3\u00a0lower beads away from the bar.<\/p>\n
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Finally\u00a0add the number 9\u00a0to abacus by pinching all the beads with your index finger and thumb. Now subtract the number 9\u00a0from the abacus by first removing the 5 bead with the index finger and then again with the index finger move the 4 lower beads away from the bar.<\/p>\n
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