Abacus Combination Formula Addition

How To Expert in The Abacus Combination Formula Addition

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Abacus Combination Formula Addition/Tricks: Till now in Abacus we have learned Small Friend Formula and Big Friend Formula and now the next lesson of our Abacus Course Level 1 is Abacus Combination Formula Addition, we also call Mix Friend Formula. The combination formula is called mixed friend formula because the combination formula is made up of small friend and big friend. To understand the combination formula better, you can watch our live video tutorials on YouTube so that you will understand the abacus combination formula completely. So let’s go ahead and start the combination formula of abacus.

Abacus Combination Formula Addition
How To Expert in The Abacus Combination Formula Addition

Abacus Combination Formula Addition/Mix Friends Formula 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

Let’s Start Abacus Combination Formula Addition Worksheets

Combination Addition
Abacus Combination Addition Formula +6=+10+1-5 / +6=+11-5

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

Abacus Combination Formula Addition +6=+10+1-5 / +6=+11-5

123456789101112131415
5
6
8		9
-1
6		5
6
4		1
7
2		5
6
9		9
8
6		7
-2
6		8
6
9		7
6
8		5
1
6		18
6
4		15
6
4		19
-2
6		18
6
7		17
6
8
               
161718192021222324252627282930
5
6
5		2
6
6		3
5
6		1
5
6		6
2
6		9
-4
6		5
6
1		6
6
5		2
5
6		8
6
6		8
6
-2		8
6
5		5
1
6		6
2
6		5
3
6
               
313233343536373839404142434445
10
5
6		15
1
6		1
4
6		3
2
6		4
2
6		7
6
-1		1
5
6		3
6
6		3
4
6		7
-1
6		5
6
2		4
4
6		11
5
6		14
1
6		16
-1
6
               

Abacus Combination Formula Addition +6=+10+1-5 / +6=+11-5 ANSWER SHEET

A Row123456789101112131415
Ans.191415102023112321133125233131
B Row161718192021222324252627282930
Ans.161414121411121713201219121414
C Row313233343536373839404142434445
Ans.212211111212121513121314222121

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

Abacus Combination Formula Addition +6=+10+1-5 / +6=+11-5

123456789101112131415
9
9
7
6		4
1
6
9		7
6
-5
6		2
3
6
4		6
4
-5
6		1
4
6
4		8
6
6
-5		3
2
6
9		5
6
-5
6		4
2
6
3		6
9
6
9		2
4
6
3		9
8
6
8		3
3
6
9		7
6
-9
7
               
161718192021222324252627282930
1
9
-5
6		5
6
9
-1		8
6
1
6		3
3
6
-5		8
7
6
-9		5
6
4
-1		1
5
6
3		7
5
6
3		4
3
6
2		9
7
6
3		2
8
-5
6		6
6
-5
6		6
-2
1
6		2
9
-5
6		9
6
6
9
               
313233343536373839404142434445
3
4
6
2		5
6
9
-8		8
7
6
-7		1
4
6
-2		4
3
6
-9		7
-4
2
6		6
6
4
3		5
2
6
-9		6
6
-2
-8		3
4
6
-6		3
2
6
4		4
4
6
3		7
-4
2
6		5
6
4
6		7
6
3
6
               

Worksheet – 1{1D4R} : Combination Formula +6=+10+1-5 ANSWEFR SHEET

A Row123456789101112131415
Ans.312614151115152321123015312011
B Row161718192021222324252627282930
Ans.111921141214152115251113111230
C Row313233343536373839404142434445
Ans.151214111212121513121314222121
Abacus Combination Formula Addition
Abacus Combination Formula Addition

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

Abacus Combination Formula Addition +7=+10+2-5 / +7=+12-5

123456789101112131415
5
7
2		6
7
3		3
2
7		4
3
7		4
1
7		5
7
-2		6
7
2		5
7
5		7
7
7		7
7
2		5
1
7		6
7
-1		7
7
5		6
7
1		5
2
7
               
161718192021222324252627282930
5
7
3		5
5
5		8
3
7		5
7
-1		7
2
4		8
7
5		7
-2
7		3
4
7		1
5
6		8
-3
7		2
4
7		5
7
4		6
7
-1		7
6
9		1
5
7
               
313233343536373839404142434445
10
5
7		11
4
7		1
6
7		2
5
7		3
3
7		15
1
7		4
4
7		20
5
7		10
-5
7		2
5
7		3
5
7		6
-1
7		5
7
8		7
7
7		15
-8
7
               

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

A Row123456789101112131415
Ans.141612141210151721161312191414
B Row161718192021222324252627282930
Ans.151518111320121412121316122213
C Row313233343536373839404142434445
Ans.222214141323153212141512202114

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

Abacus Combination Formula Addition +7=+10+2-5 / +7=+12-5

123456789101112131415
4
1
7
3		9
9
9
7		1
9
-5
7		5
7
3
-1		7
3
-5
7		3
2
7
3		8
7
7
-9		2
3
7
3		6
7
-5
6		1
4
7
-3		7
6
4
7		2
4
7
-5		5
6
-5
7		9
8
7
1		4
2
7
2
               
161718192021222324252627282930
6
9
7
-5		3
3
7
2		8
9
7
1		6
9
7
3		1
9
-3
7		8
4
3
7		3
4
7
9		5
7
8
-1		7
9
7
-4		2
8
-5
7		4
3
7
3		9
7
7
2		4
4
9
7		8
3
-5
7		2
9
-5
7
               
313233343536373839404142434445
6
7
3
-1		3
3
7
-5		9
6
7
3		1
4
7
8		5
7
8
-9		7
8
7
3		5
7
7
-3		8
7
7
7		4
6
-7
-1		6
6
7
9		5
5
-7
5		5
1
7
2		7
7
5
1		5
2
7
4		4
1
7
2
               

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

A Row123456789101112131415
Ans.1534121412151315149248132515
B Row161718192021222324252627282930
Ans.171525251422231919121725241313
C Row313233343536373839404142434445
Ans.158252011251629228815201814
Combination Addition
Abacus Combination Addition Formula +8=+10+3-5 / +8=+13-5

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

Abacus Combination Formula Addition +8=+10+3-5 / +8=+13-5

123456789101112131415
5
8
-1		3
3
8		6
8
3		8
-2
4		5
7
4		5
1
8		6
8
-3		9
-3
8		6
8
5		1
6
7		7
6
9		7
-1
8		1
7
5		8
-3
7		5
8
3
               
161718192021222324252627282930
5
8
-2		6
9
8		7
-2
8		9
-4
8		6
8
7		9
-3
8		7
-2
8		6
8
1		6
8
2		5
8
-1		6
8
4		6
8
5		8
8
8		5
8
-2		5
8
1
               
313233343536373839404142434445
1
5
8		1
4
8		2
3
8		2
8
3		7
-6
8		3
3
8		1
6
8		10
-5
8		4
2
8		24
8
8		15
8
-2		20
5
8		15
-5
8		5
8
8		15
8
5
               

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

A Row123456789101112131415
Ans.121417101614111419142214131316
B Row161718192021222324252627282930
Ans.112313132114131516121819241114
C Row313233343536373839404142434445
Ans.14131313914151314302133182128

Worksheet – 6{1D4R} : Combination Formula +8=+10+2-5

Abacus Combination Formula Addition +8=+10+3-5 / +8=+13-5

123456789101112131415
6
8
1
-2		2
4
8
-5		9
9
8
8		5
8
2
-1		3
4
9
8		7
2
7
8		1
5
8
3		8
8
8
-5		4
3
9
8		8
6
1
8		3
2
8
3		6
-4
3
8		1
4
8
-5		4
4
7
8		9
7
8
-5
               
161718192021222324252627282930
2
8
-4
8		5
7
3
8		7
5
4
8		2
4
8
2		7
4
4
8		5
8
2
-4		8
3
-5
8		1
9
-4
8		4
2
8
1		6
-2
1
8		3
2
8
-5		9
6
8
-9		7
8
8
-9		1
6
9
8		5
6
4
8
               
313233343536373839404142434445
9
4
2
8		2
9
-5
8		3
3
8
-5		8
8
8
2		4
4
8
8		6
6
4
8		6
8
2
-3		9
-3
8
4		5
8
-4
1		2
4
8
-5		2
3
8
1		2
4
8
4		5
-2
8
3		5
8
3
8		6
8
1
8
               

Worksheet – 6{1D4R} : Combination Formula +8=+10+2-5 ANSWER SHEET

A Row123456789101112131415
Ans.1393414242417192223161382319
B Row161718192021222324252627282930
Ans.142324162311141415131014142423
C Row313233343536373839404142434445
Ans.2314926242413181091418142423

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

Abacus Combination Formula Addition +9=+10+4-5 / +9=+14-5

123456789101112131415
5
9
5		5
9
2		15
9
1		3
2
9		8
-3
9		3
3
9		9
-4
9		1
4
9		7
-2
9		3
6
9		6
5
9		7
8
9		3
7
9		9
6
9		1
6
9
               
161718192021222324252627282930
2
3
9		1
4
9		5
9
9		7
-2
9		8
-3
9		5
9
-1		9
-4
9		6
-1
9		5
9
-2		5
4
9		3
2
9		5
9
-3		4
1
9		7
2
1		5
9
-4
               
313233343536373839404142434445
10
-5
9		5
9
6		5
9
5		1
5
9		2
3
9		10
-6
9		11
4
9		15
9
-4		10
5
9		20
5
9		12
9
-9		30
-5
9		30
5
9		17
-2
9		15
9
5
               

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

A Row123456789101112131415
Ans.191625141415141414182024192416
B Row161718192021222324252627282930
Ans.141426141413141412181411141010
C Row313233343536373839404142434445
Ans.142019151413242029241234442429
Abacus Combination Addition
Abacus Combination Addition Formula +9=+10+4-5 / +9=+14-5

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

Abacus Combination Formula Addition +9=+10+4-5 / +9=+14-5

123456789101112131415
4
1
9
1		9
6
9
1		1
4
9
3		6
9
9
9		2
9
4
9		8
-4
1
9		5
6
4
9		3
2
9
3		7
3
-5
9		7
4
4
9		1
5
9
9		8
6
1
9		2
3
9
8		5
9
1
-2		3
3
9
9
               
161718192021222324252627282930
9
8
8
9		4
2
9
9		6
-3
2
9		7
-3
1
9		2
3
9
6		4
9
2
9		9
4
2
9		3
2
9
6		6
9
9
1		1
4
9
6		5
9
7
9		8
5
2
9		4
6
-5
9		8
9
8
9		2
3
9
7
               
313233343536373839404142434445
6
8
1
9		1
9
-5
9		7
8
9
6		5
9
6
-7		3
6
6
9		9
2
4
9		5
9
-2
-4		5
9
-4
-3		9
-4
9
-5		1
4
9
-4		4
1
9
3		3
2
9
2		6
-4
3
9		7
9
9
9		6
9
9
4
               

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

A Row123456789101112131415
Ans.152517332414241714242424221324
B Row161718192021222324252627282930
Ans.3424141420242420252030 24143421
C Row313233343536373839404142434445
Ans.241430132424879101716143428

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F & Q

What is the special combination formula?

How do you solve combination formula?

What is a combination in maths?

How many combinations of 4 numbers are there?

How many combination formula are there in abacus?

Conclusion

In today’s blog we saw how we will do the combination addition formula of Abacus.
This is just the beginning of the combination addition tricks of Abacus, it is just basic, we will see its real use in the further levels of Abacus. Abacus combination addition tricks/formulas help us a lot in solving the problems but it is a little difficult to do these techniques. It is difficult as the combination formula has to be practiced more as compared to small friend and big friend.
Our next chapter will be Combination Subtraction of Abacus. Click here to read the next chapter.
Thank you.

https://www.youtube.com/channel/UCDWONUaVQu0J9ubtUmXKBbA

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