3 years ago

What number is needed to complete the pattern 66 73 13 21 52 _10 20

Mathematics

1 answer:

sweet [91]3 years ago

6 0

The answer is 61.

66 + 7 = 73
13 + 8 = 21
52 + 9 = 61 (The answer)
10 + 10 = 20

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