4 years ago

0.30+0.31+0.32+0.33+...0.49+0.50

1 answer:

8 0

You can use gauss's method

n(first number + last number)/2 where n is the number of integers in this case 21 ()

21(0.30 + 0.50)/2

21*0.8/2

21*0.4

8.4

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