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Soroban worksheet: 10th Dan (with answer key)

A printable sample soroban (abacus) worksheet for 10th Dan (Addition, Multiplication, Division, Mental math). Format: 7–9-digit, 15 terms (120 digits in total). Print the sheet below as it is — the answer key is included.

10th Dan format

TypeFormat
🧮 Addition7–9-digit, 15 terms (120 digits in total)
✖️ Multiplication8-digit × 6-digit / 6-digit × 8-digit · includes decimals and ¥ problems (rounding)
➗ Division13-digit ÷ 6-digit · includes decimals and ¥ problems (rounding)
💭 Mental math7-digit, 15 terms

A4 / Letter. Only the sheets are printed.

10th Dan Worksheet (sample)
NameDateTimeScore
🧮 Addition7–9-digit, 15 terms (120 digits in total)
12345
62,775,097
5,199,007
5,580,070
467,383,976
2,191,446
7,934,780
8,369,807
5,129,458
− 95,221,325
198,168,373
− 352,546,873
− 195,072,126
384,700,897
760,438,526
− 64,858,139
43,483,357
7,852,041
673,108,988
− 16,536,372
2,150,202
764,440,650
96,529,381
31,896,040
− 41,776,479
26,125,182
− 408,173,373
− 518,820,000
− 49,312,392
6,637,140
− 9,129,591
6,833,346
213,052,801
6,486,127
216,834,083
− 22,085,106
5,751,836
973,107,223
96,539,617
− 53,022,905
− 317,870,931
60,940,221
− 15,167,237
− 7,292,313
361,269,638
− 9,943,601
301,898,861
5,165,770
8,149,947
46,457,766
− 35,629,516
61,475,838
199,964,179
7,172,631
− 14,777,170
− 406,987,062
10,990,944
358,682,129
− 112,691,145
− 8,593,807
7,539,583
104,998,663
3,007,066
805,975,907
8,592,397
69,883,657
879,093,534
− 5,589,751
− 15,903,103
69,710,361
− 157,027,346
− 9,627,278
− 7,132,585
494,798,198
78,732,815
26,752,754
678910
937,342,599
443,361,331
− 780,052,331
96,590,941
43,830,107
2,255,563
− 626,765,730
32,690,456
− 97,241,633
19,038,537
7,887,081
− 21,685,975
24,339,364
2,900,711
− 8,822,097
16,187,987
924,811,708
− 6,774,633
28,504,526
610,461,466
650,661,564
33,563,914
− 4,359,774
4,281,958
− 18,065,812
− 55,526,521
77,161,394
3,804,459
− 173,691,422
− 11,892,478
4,814,263
2,671,792
2,554,916
77,795,600
− 60,985,180
6,866,154
281,955,403
890,333,885
825,875,993
17,313,626
− 1,722,233
− 57,434,163
− 36,426,398
− 134,776,817
− 708,302,408
20,375,961
1,096,283
1,646,138
25,916,870
757,780,319
604,499,708
− 135,837,566
− 89,555,156
6,789,829
101,541,816
55,155,812
− 19,091,952
− 65,504,384
3,462,586
60,060,931
174,429,332
236,101,200
1,926,013
− 176,731,317
4,239,743
− 40,617,530
− 38,335,859
6,873,712
− 98,222,757
148,844,305
59,280,942
89,441,497
− 59,068,688
88,842,636
6,034,966
✖️ Multiplication8-digit × 6-digit / 6-digit × 8-digit · includes decimals and ¥ problems (rounding)
1¥ 322,464 × 370,780.66
2¥ 72,539,073 × 344.161
320.242594 × 0.482799
4¥ 384,995 × 4,629,080.8
5984.433 × 2,269,051.7
6¥ 12,876,699 × 877.755
73.36931 × 552,793.79
83.8344982 × 510,237
97.87063 × 11.949743
10¥ 40,997,385 × 10,376.3
➗ Division13-digit ÷ 6-digit · includes decimals and ¥ problems (rounding)
1¥ 2,782,842,600,720 ÷ 2,523.30
2¥ 1,170,193,968,684 ÷ 113.087
31,838,798,822,784 ÷ 69,984.5
4¥ 5,524,415,567,680 ÷ 39,045.1
52,987,628,373,218 ÷ 57,541.8
62,008,271,997,216 ÷ 27,737.7
74,358,975,121,658 ÷ 64,936.6
86,187,079,908,336 ÷ 3.58966
9454,213,150,275.7 ÷ 41,569.3
106,149,193,950.000 ÷ 0.793750
💭 Mental math7-digit, 15 terms
12345
3,371,266
3,511,005
2,297,340
1,335,923
3,291,986
5,563,693
5,599,481
− 8,989,455
− 4,024,641
2,146,869
3,291,200
− 1,423,490
− 3,777,713
4,717,766
− 8,141,375
9,876,893
4,060,588
4,511,992
− 4,315,443
− 4,382,254
4,510,026
− 3,505,771
− 9,615,736
9,905,562
− 4,389,968
9,628,693
5,566,993
2,362,775
5,556,953
− 2,436,624
7,059,816
2,147,481
− 3,075,569
− 3,878,544
− 2,119,240
1,600,899
1,086,846
2,657,349
9,271,609
− 1,706,643
8,724,730
− 9,210,084
4,094,175
2,291,210
7,075,627
6,335,159
4,705,926
− 3,891,889
2,184,010
− 3,669,392
− 3,877,944
7,009,248
1,251,469
3,922,514
9,090,886
8,707,248
− 7,630,665
1,028,871
− 1,253,076
5,033,167
2,441,079
6,183,971
− 5,901,142
− 1,612,100
8,020,881
1,324,943
− 8,499,399
1,357,036
− 1,081,521
2,895,459
4,581,033
6,406,115
9,159,042
7,500,930
− 8,846,600
678910
2,810,056
4,315,024
7,532,956
− 1,385,724
8,999,740
− 1,230,019
− 1,140,999
9,497,440
− 5,223,150
7,943,725
7,866,234
8,364,550
8,919,186
− 3,572,385
− 7,962,476
6,505,517
1,698,500
9,993,839
− 5,684,603
5,663,112
3,230,887
7,844,431
8,105,681
− 2,969,086
− 8,510,347
− 3,914,727
9,797,395
1,605,889
− 7,480,105
3,492,461
1,989,716
1,763,187
1,804,614
− 5,235,006
7,585,537
4,291,956
9,737,771
− 5,943,138
8,234,627
6,846,284
− 5,979,533
− 1,532,171
5,924,186
− 6,969,544
3,933,774
6,104,049
1,463,106
7,220,582
− 4,707,149
− 8,794,236
− 1,209,381
9,204,257
6,205,786
6,341,799
9,533,807
− 5,913,528
5,088,275
5,817,931
8,462,898
2,422,210
6,425,428
6,989,182
2,536,678
− 9,437,230
− 1,851,300
− 1,441,779
8,754,757
1,952,737
9,487,868
− 2,591,402
7,136,283
− 5,735,081
8,067,671
1,270,709
− 7,921,402
Soroban Kingdom sorobankingdom.com/en/print/dan10
10th Dan Answer key (for parents and teachers)
🧮 Addition1. 1,200,172,9742. 608,474,7743. 1,515,432,7994. 428,818,9485. 2,346,265,2896. 75,668,9247. 2,079,128,3368. 1,110,534,4339. 1,328,337,19510. 403,038,195
✖️ Multiplication1. ¥ 119,563,414,7462. ¥ 24,965,119,9033. 9.7734. ¥ 1,782,172,962,5965. 2,233,729,372.1866. ¥ 11,302,586,9317. 1,862,533.6458. 1,956,502.8589. 94.05210. ¥ 425,401,165,976
➗ Division1. ¥ 1,102,858,4002. ¥ 10,347,732,0003. 26,274,372.5084. ¥ 141,488,0635. 51,921,0106. 72,402,253.8727. 67,126,6308. 1,723,583,823,631.2079. 10,926,64910. 7,747,016,000
💭 Mental math1. 8,769,8552. 27,334,6793. 26,019,6624. 28,945,5325. 23,929,7276. 45,734,1587. 29,378,8448. 26,452,2609. 47,240,40610. 23,643,119
Soroban Kingdom sorobankingdom.com/en/print/dan10

What 10th Dan builds

The 10th Dan format is this app's guide. Multiplication and division include decimal and ¥ problems (rounding).

* The format (digits, terms, total digits) is this app's own guide, based on publicly available abacus exam examples. Every number was generated by this app; nothing is copied from any exam. This app is not affiliated with any abacus exam organisation. “Kyu” and “Dan” are the Japanese level names (20th Kyu is the first step; Dan is above 1st Kyu).

Other levels

20th Kyu19th Kyu18th Kyu17th Kyu16th Kyu15th Kyu14th Kyu13th Kyu12th Kyu11th Kyu10th Kyu9th Kyu8th Kyu7th Kyu6th Kyu5th Kyu4th Kyu3rd Kyu2nd Kyu1st Kyu1st Dan2nd Dan3rd Dan4th Dan5th Dan6th Dan7th Dan8th Dan9th Dan10th Dan
◀ 9th Dan

FAQ

Can anyone print this worksheet?

Yes. The sample sheet and answer key print as they are, with no sign-up. Press “Print” and only the sheets come out (A4 / Letter).

How do I get new problems?

The app's “🖨 Make a worksheet” builds 10th Dan sheets in the same format with new numbers every time. Levels 20–16 need no sign-up and stay free.

What do Kyu and Dan mean?

They are the Japanese soroban levels. Children start at 20th Kyu and move up to 1st Kyu, then 1st Dan to 10th Dan. 20th–16th Kyu are this app's own beginner levels. See what each level means.

Where is the answer key?

Below the worksheet. When printed, it comes out as the last page.

🧮 New problems, as many as you like

The app's “🖨 Make a worksheet” builds sheets in the same format with new numbers every time (answer key included). Solve on screen and it is marked automatically; when an answer is wrong, it shows the bead move that most likely caused it, worked out from the answer.

Levels 20–16 need no sign-up and stay free. Want to play first? Try the Flash Anzan Adventure (no sign-up).

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