Q: How do you get 16 by using 1 2 3 4?

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42 = 4x4 = 161+2+3+4+3+2+1 = 16(3-1) x (2x4) = 16

How about: 2*(1+3+4) = 16

2/3 × 16 = 2/3 × 16/1 = (2×16)/(3×1) = 32/3 = 10⅔

16/24 because 1/3 of 24=8 so 2/3 of 24 is 16 and this caculation uses all the numbers.

1 + 2 + 3 + 4 + 9 + 10 + 15 + 16 - 5 - 6 - 7 - 8 = 34

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(3 + 1)2 = 16

(4 x 3) + 2 + 1 +1 = 16

(4 + 3 + 1) x 2 = 16

3-1=2 then 2x2x4=16.

42 = 4x4 = 161+2+3+4+3+2+1 = 16(3-1) x (2x4) = 16

1 + (2 + 5)(16 + 8)/3 (1 + 2) - (1 - 6)

How about: 2*(1+3+4) = 16

only using the numbers once

2/3 × 16 = 2/3 × 16/1 = (2×16)/(3×1) = 32/3 = 10⅔

16/24 because 1/3 of 24=8 so 2/3 of 24 is 16 and this caculation uses all the numbers.

1 + 2 + 3 + 4 + 9 + 10 + 15 + 16 - 5 - 6 - 7 - 8 = 34

3-1=2 2*4=8 8*2=16 or 3-1=2 2*2=4 4*4=16