The following equation is incorrect. Which two signs should be interchanged to correct the equation?
16 ÷ 4 - 50 x 4 + 18 = 26
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5 - 12 + 15 ÷ 50 x 25 = 23
6 x 18 + 40 ÷ 30 - 10 = 20
15 + 2 ÷ 20 x 10 - 6 = 13
Select the missing term based on the given related pair of terms.
COULD : BNTKC :: MOULD : ___
If "A" means "subtraction", "B" means "division", "C" means "addition" and "D" means "multiplication", then
305 B 5 A 28 C 43 D 12 = ?
5 + 8 ÷ 40 - 20 x 25 = 6
16 ÷ 6 + 35 x 9 - 15 = 31