Abacua Level 1 : Now We Learn Abacus Combination Formula Subtraction

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Abacus Combination Formula Subtraction is the last part of level 1 of our abacus.
Till now we have covered 5 chapters of Abacus like small friend addition, small friend subtraction, big friend addition, big friend subtraction, combination addition. Today is our Abacus combination subtraction formula/trick. This formula is also a little difficult and it is difficult to learn it. For this you will have to practice a lot, only then you will be able to master Abacus.
I have made many abacus worksheets for you, if you practice all these worksheets then you will not face any problem in learning abacus, so let’s move towards our Abacus Combination Formula Subtraction and start saving the worksheets.

Abacus Combination Formula Subtraction
Abacus Combination Formula Subtraction

Abacus Combination Formula Subtraction Chart

Formula no. 1-6=-10-1+5
-6=-11+5
Formula no. 2-7=-10-2+5
-7=-12+5
Formula no. 3 -8=-10-3+5
-8=-13+5
Formula no. 4-9= -10-4+5
-9=-14+5

Now We Start Abacus Combination Formula Subtraction Worksheets

Abacus Combination Formula Subtraction
Abacus Combination Formula Subtraction

Worksheet – 1{1D3R} : Abacus Combination Formula Subtraction -6=-10-1+5

123456789101112131415
5
7
-6
6
7
-6
8
5
-6
5
8
-6
7
6
-6
7
5
-6
9
5
-6
5
9
-6
7
4
-6
4
7
-6
8
6
-6
6
8
-6
8
3
-6
3
8
-6
2
9
-6
               
161718192021222324252627282930
11
-6
3
12
-6
8
14
-6
-2
44
-6
2
31
-6
4
13
-6
-1
24
-6
-2
26
-5
-6
10
2
-6
24
-6
-5
13
-6
-2
23
-6
-5
14
-6
-5
18
-5
-6
17
-5
-6
               
313233343536373839404142434445
10
-6
6
11
-6
4
11
-6
5
5
6
-6
6
5
-6
4
7
-6
6
6
-6
4
8
-6
3
3
-6
7
2
-6
6
7
-6
8
5
-6
7
7
-6
11
-6
7
6
8
-6
               
A Row123456789101112131415
Ans.677776883588555
B Row161718192021222324252627282930
Ans.8146362961615613512376
C Row313233343536373839404142434445
Ans.109105550603738128

Worksheet – 2{1D4R} : Abacus Combination Formula Subtraction -6=-10-1+5

123456789101112131415
9
5
-6
2
4
9
-6
-3
8
9
5
-6
1
9
1
-6
7
9
5
-6
3
9
-6
7
6
9
-1
-6
2
9
-6
-1
5
-1
9
-6
6
8
-6
-4
3
8
-6
-1
9
2
-6
-2
2
8
1
-6
5
9
-6
2
8
8
-3
-6
               
161718192021222324252627282930
1
7
4
-6
4
8
-6
7
7
8
-4
-5
4
7
-6
7
7
7
-6
3
3
7
1
-6
6
7
-6
-3
9
4
-6
9
5
8
9
-6
2
7
4
-6
8
2
1
-6
1
6
4
-6
6
5
-6
-1
1
4
7
-6
4
6
1
-6
               
313233343536373839404142434445
8
7
-3
-6
2
6
4
-6
7
5
-6
-2
3
6
5
-6
5
7
-6
-2
9
7
-3
-6
5
9
-6
2
4
7
-6
7
6
8
-6
8
5
9
-5
5
4
1
3
3
7
4
-6
8
7
3
4
-6
4
8
-6
8
14
-6
4
5
               
A Row123456789101112131415
Ans.10416515138474435107
B Row161718192021222324252627282930
Ans.6136129541616755465
C Row313233343536373839404142434445
Ans.6648471012161411138217
Combination subtraction
Combination subtraction

Worksheet – 3{1D3R} : Abacus Combination Formula Subtraction -7=-10-2+5

123456789101112131415
10
-7
7
12
-7
-5
6
5
-7
7
7
-7
6
6
-7
6
8
-7
9
5
-7
4
7
-7
4
8
-7
3
9
-7
12
-7
5
7
6
-7
13
-7
4
8
4
-7
5
8
-7
               
161718192021222324252627282930
5
7
-7
6
7
-7
8
5
-7
5
8
-7
3
9
-7
4
8
-7
8
6
-7
7
5
-7
7
6
-7
9
3
-7
6
8
-7
4
9
-7
7
7
-7
5
9
-7
9
5
-7
               
313233343536373839404142434445
12
-7
2
22
-7
2
20
2
-7
16
-7
3
14
-7
3
35
-1
-7
10
3
-7
11
2
-7
20
4
-7
14
-7
2
21
2
-7
24
-7
-5
17
-5
-7
23
1
-7
19
-5
-7
               
A Row123456789101112131415
Ans.10047577454435107
B Row161718192021222324252627282930
Ans.61361211541616755465
C Row313233343536373839404142434445
Ans.664847101216141113101417

Worksheet – 4{1D4R} : Abacus Combination Formula Subtraction -7=-10-2+5

123456789101112131415
4
4
5
-7
9
5
-7
-3
1
4
8
-7
3
2
8
-7
8
9
5
-7
6
6
-7
-1
2
3
8
-7
7
9
-2
-7
5
9
-7
4
7
8
-3
-7
2
4
8
-7
5
8
-7
6
9
6
-1
-7
1
9
4
-7
4
3
6
-7
               
161718192021222324252627282930
8
8
-2
-7
3
9
-7
6
6
5
1
-7
6
4
4
-7
1
6
6
-7
8
7
-1
-7
5
7
2
-7
3
9
-7
8
9
7
-2
-7
2
9
1
-7
4
9
-7
6
7
7
-7
-3
5
5
4
-7
7
6
-7
-2
1
5
6
-7
               
313233343536373839404142434445
3
8
3
-7
8
6
-7
9
6
3
5
-7
2
2
8
-7
9
8
-4
-7
4
8
-7
6
10
-7
7
7
5
7
-7
-5
4
6
-7
-1
5
6
-7
-1
3
7
-7
-2
6
-3
9
7
8
6
-7
8
5
9
-7
5
9
5
-7
4
               
A Row123456789101112131415
Ans.6414615467115712776
B Row161718192021222324252627282930
Ans.711576771375124745
C Row313233343536373839404142434445
Ans.7167531117023119151211
Combination subtraction
Abacus Combination Formula Subtraction

Worksheet – 5{1D3R} : Abacus Combination Formula Subtraction -8=-10-3+5

123456789101112131415
5
9
-8
6
7
-8
7
7
-8
8
6
-8
8
5
-8
6
8
-8
9
5
-8
6
3
-8
5
8
-8
7
6
-8
5
5
-8
6
4
-8
7
8
-8
9
-8
9
5
9
5
               
161718192021222324252627282930
17
-8
7
24
-8
7
13
-8
9
23
-8
7
24
-8
-5
14
-8
-1
23
-8
-5
14
-8
2
24
-8
-1
23
-8
-2
14
-8
3
24
-8
-6
23
-8
2
24
-8
2
10
-8
8
               
313233343536373839404142434445
13
-8
3
7
7
-8
8
5
-8
4
9
-8
6
8
-8
14
-8
-5
9
5
-8
5
4
-8
6
4
-8
6
7
-8
5
8
-8
5
9
-8
9
4
-8
3
7
-8
30
3
-8
               
A Row123456789101112131415
Ans.65665661552271019
B Row161718192021222324252627282930
Ans.162314221151081513910171810
C Row313233343536373839404142434445
Ans.8655616125565225

Worksheet – 6{1D4R} : Abacus Combination Formula Subtraction -8=-10-3+5

123456789101112131415
9
9
-5
-8
1
9
4
-8
4
4
5
-8
8
5
-8
6
5
-1
9
-8
3
2
9
-8
7
9
-2
-8
2
3
9
-8
6
7
-8
-1
6
9
-1
-8
1
8
5
-8
9
-5
9
-8
2
4
7
-8
4
9
-8
-1
8
9
-3
-8
               
161718192021222324252627282930
5
9
-8
-2
3
3
7
-8
7
8
-2
-8
1
7
5
-8
7
6
-8
-1
5
8
-8
-1
3
4
6
-8
4
8
1
-8
6
8
9
-8
8
8
-2
-8
2
9
2
-8
5
6
3
-8
3
5
5
-8
8
7
-2
-8
1
6
6
-8
               
313233343536373839404142434445
6
6
1
-8
4
9
-8
-2
9
6
-1
-8
2
4
8
-8
7
-3
9
-8
13
-8
3
3
8
5
-8
-1
6
7
-8
3
9
5
-8
5
8
8
8
-8
16
8
-8
-8
6
8
-8
6
4
8
-8
7
9
3
-8
9
9
-2
7
-7
               
A Row123456789101112131415
Ans.5661156664665546
B Row161718192021222324252627282930
Ans.5555445515656553
C Row313233343536373839404142434445
Ans.546651148111681211137
Combination subtraction
Abacus Combination Formula Subtraction

Worksheet – 7{1D3R} : Abacus Combination Formula Subtraction -9= -10-4+5

123456789101112131415
7
7
-9
5
9
-9
8
6
-9
4
5
-9
10
-9
9
7
8
-9
6
8
-9
9
5
-9
3
6
9
18
-9
-9
15
-1
-9
10
4
-9
9
7
9
5
9
9
14
-9
-5
               
161718192021222324252627282930
3
8
-9
-2
2
4
-9
4
1
4
-9
4
4
4
-9
2
1
4
-9
5
3
4
-9
4
2
4
-9
3
3
4
-9
3
2
4
-9
4
4
4
-9
1
2
4
-9
5
1
4
-9
5
3
4
-9
9
2
4
-9
3
3
4
-9
7
               
313233343536373839404142434445
11
-9
9
8
6
-9
14
-9
3
9
5
-9
6
8
-9
7
7
-9
24
-9
-5
9
5
9
6
3
-9
5
9
-9
18
-4
-9
19
-5
-9
20
4
-9
9
9
-9
10
4
-9
               
A Row123456789101112131415
Ans.55501010551805525230
B Row161718192021222324252627282930
Ans.011112011021705
C Row313233343536373839404142434445
Ans.1158555102305551595

Worksheet – 8{1D4R} : Combination Subtraction Formula -9= -10-4+5

123456789101112131415
1
9
4
-9
9
5
-9
-1
6
4
4
-9
3
9
2
-9
8
6
-9
-1
2
9
3
-9
4
1
9
-9
7
7
-9
-2
5
5
4
-9
6
5
3
-9
1
8
5
-9
4
2
8
-9
9
7
8
-9
3
2
9
-9
7
3
4
-9
               
161718192021222324252627282930
5
9
-9
-1
2
8
4
-9
8
7
-1
-9
1
7
6
-9
8
6
-9
-2
5
8
1
-9
2
7
5
-9
7
7
-9
-4
3
8
3
-9
9
6
-1
-9
4
3
7
-9
6
6
2
-9
7
9
8
-9
1
6
7
-9
3
7
4
-9
               
313233343536373839404142434445
5
9
-9
-2
8
8
8
-9
4
4
6
-9
6
7
1
-9
2
6
6
-9
9
5
-9
-4
15
-9
4
-9
7
7
-9
4
9
5
-9
6
18
9
-9
-9
6
8
-9
-3
7
8
8
-9
6
8
7
-9
8
3
3
-9
6
6
2
-9
               
A Row123456789101112131415
Ans.4575455355551555
B Row161718192021222324252627282930
Ans.4555355155551555
C Row313233343536373839404142434445
Ans.3157551191192161255

Abacus Books Level 1

Abacus Level 1 Books {book A & book B}

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Abacus Level 1 Books {book A & book B}

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F & Q

How do you solve abacus subtraction?

Can abacus perform subtraction?

How to do mix friends in abacus?

What is abacus for class 5?

How do you count in abacus?

What is subtraction formula in abacus?

How to do easy subtraction ?

Conclusion

formula of Abacus Course Level 1 and now we have complete knowledge of the entire Abacus Level 1.
In this part of ours, you have studied 6 chapters of Level 1 and I hope that you have also practiced all the worksheets given in this part.
If you haven’t done it then do it because now in the next part we are going to start level 2. And if you have not practiced Level 1 properly then you will not understand Level 2.
Then if you face any problem in Level 1 or do not understand anything, then please comment and I will reply to you.
Thank you very much for reading this blog of mine🙏

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