Q: What is 10 plus 2 plus 9 plus 1?

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3 + 5 + 6 + 9 + 2 + 1 + 10 = 36

(10+9)+(1−1)+(2−2)+(3−1)+(4−4) = 21This is the same equation rewritten: (10+9)+(3−1) = 21This can be done as 1-1, 2-2, 4-4 cancel themselves out.

9/10 + ½ =9/10 + 2/10 = 11/10 = 1⅒

(10 + 1) x 10/2

2X + 9 = 10 subtract 9 from each side 2X + 9 - 9 = 10 - 9 2X = 1 divide both sides integers by 2 (2/2)X = 1/2 X = 1/2 -----------------check in original equation 2(1/2) + 9 = 10 2/2 + 9 = 10 1 + 9 = 10 10 = 10 --------------checks [ 2(1/2) also cancels to just 1 ]

1/5 = 9/45 2/9 = 10/45 19/45

It equals 28. ,

10

9/10 + 6/10 = 15/10 (Which can be written as 3/2 or 11/2)

1+2+3+4+5+6+7+8+9+10=55

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55

10 + 2(x - 1) + 7 x 3x + 1 =10 + 2x - 2 + (7 x 3x) + 1 =10 + 2x - 2 + 21x + 1 =2x + 21x + 10 - 2 + 1 =23x + 9

9 1 With 10 plus 5 you would have to change the denominator to make them have a 9 2 common denominator. So then the problem would change to 10 plus 10, which 11 1 1 equals 10, which simplified is 1 and 10. The answer is 1.1 or 1 and 10.

So, laying out the question in traditional format: 2 + -25 + 22 + -9 = ? Starting from the left, 2 + -25 = -23 -23 + 22 = -1 -1 + -9 = -10 The solution is -10.

1

10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 + 0 = 55

48 plus 22 plus 10 plus 10 plus 9 plus 1 is equal to 100.

9/10+1/5... 1/5=2/10 therefore 9/10+2/10=11/10 11/10= 1 1/10

10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 + 0 = 55

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 = 78

2/5 x 2/2 = 4/10 1/2 x 5/5 = 5/10 4/10 + 5/10 = 9/10 9 tenths

It is: 1+9+2 = 12

6/9 + 4/9 = 10/9 = 1 and 1/9

76

the sum of 1 plus 9 is 10 because 1+9