{"id":309,"date":"2024-01-28T15:10:27","date_gmt":"2024-01-28T23:10:27","guid":{"rendered":"https:\/\/www.rightlobemath.com\/blog\/?p=309"},"modified":"2020-01-29T13:13:18","modified_gmt":"2020-01-29T21:13:18","slug":"abacus-math-program-lesson-2-counting-6-to-9","status":"publish","type":"post","link":"https:\/\/sumomath.com\/content\/abacus-math-program-lesson-2-counting-6-to-9\/","title":{"rendered":"Abacus Math Program – Lesson 2 – Counting 6 to 9"},"content":{"rendered":"

Now 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

\t\t\t\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t\t\t\t<\/p>\n

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

\t\t\t\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t\t\t\t<\/p>\n

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

\t\t\t\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t\t\t\t<\/p>\n

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

\t\t\t\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t\t\t\t<\/p>\n

Ok, we can now represent all 10 digits, 0 through 9, and count 0 to 9 on a single rod of the abacus. Again a great way to practice your finger movements is to sequentially add and then subtract each digit from 0 to 9. In the next Lesson 3 Simple Addition and Subtraction<\/u><\/a> we will start putting our new abacus math knowledge to work doing some simple addition and subtraction problems.<\/p>\n","protected":false},"excerpt":{"rendered":"

Now 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<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-309","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/sumomath.com\/content\/wp-json\/wp\/v2\/posts\/309"}],"collection":[{"href":"https:\/\/sumomath.com\/content\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sumomath.com\/content\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sumomath.com\/content\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/sumomath.com\/content\/wp-json\/wp\/v2\/comments?post=309"}],"version-history":[{"count":0,"href":"https:\/\/sumomath.com\/content\/wp-json\/wp\/v2\/posts\/309\/revisions"}],"wp:attachment":[{"href":"https:\/\/sumomath.com\/content\/wp-json\/wp\/v2\/media?parent=309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sumomath.com\/content\/wp-json\/wp\/v2\/categories?post=309"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sumomath.com\/content\/wp-json\/wp\/v2\/tags?post=309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}