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Balancing Carry Over

Balancing Carry Over 13|56|01|9     first balance it                           13|56|01|09                            ______________   =18619 write 9 then 0+1=1,  0+6=6,5+3=8 write 1 Start the method from right hand side. 8 |86|08|65|8|8 balance  08|86|08|65|08|08 =1674588
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Racy Subtraction

RACY SUBTRACTION    78890765326 -66569999996  ----------------------=12320165330 123      3 ( 0-9=-9)       20(10-9)next no.is 7-9           165330 Same method as Racy Addition but instead of adding 1 when the next no. Is a big number subtracted from small (3-9=-6) subtract 1 from the previous number .   75899764333679 - 58843213489008 ____________________  16956550844671 POWER 10 SUBTRACTION  If there are zero in above no. Subtract all zero from 9 and the last one from 10. Example   63000000 -49784200 ____________=13215800 13     (9-7=2)     (9-8=1)      (9-4=5)      (10-2=8)      00   40000005 -29747898 ___________ 10252107
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Racy Addition

Racy Addition   345672148 +356809876 ----------------------   702482024 3+3=6 start addition from left side. Check whether the next number (also the other next digits.  )is more than ten or less than 10 If more than ten then add 1 to previous no.6+1=7. Proceed in the same way.   7895322422168 +4890886432211 __________________=12786208854379 12     78         620             8854379     
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The dot method

THE DOT METHOD All this is based on end digits so you need to learn it first. 1.   43 +.34 +56. +.78. +56 _____ 267 (start from bottom right side numbers.  6+8=14 the trick here is add the number from bottom to top and put a dot if it's more than 10 ie 14 is more than 10 therefore put a Dot add4+6=10,put a dot and add 0+4=4 it is less than 10 so carry 4 and add 4+3=7 so 7 is <10.so write 7 . Than7+5=12put dot ,2+5=7+3=10 put dot than 4+the dot you have put in right side. 4+2dots=6 write 6 Than add the dots in left side That is 2 dots.  So the answers is 267. This is just like using end digit with a dot. 2.   6. (4+6=10) +9. (9+5=14) +7.(8+7=15) +8 +9.(1+9=10) +5. +6 _____    5 0 3.   .89.76 +.646.9.(9+8=17, carry7) +6458 _______  2 1 9 8 7 This may seem confusing but it's the easiest method for large number of additions. If you practice you can learn it. If the after adding the dot the no. Becomes more than ten then add a dot on the top
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Addition based on end digit

Addition based on end digit The end digit of 17=7 The end digit of 8908=8 The end digit of 900076543=3 Addition based on end digit 1)7+9=16 2)89+6=95 (9+6=15,There fore end digit of 15 is 5 so keep the five and the 1 +8) 3)567+45=  13(7+5=613,6+4=10+1=11,1+5=6)
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