21 x 42 = 882
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1/2 times 42 = 21
It is: 250/21 times 42 = 500
How about: 2 times 21 = 42
42 ÷ 2 = 21
To find what number times 2 equals 42, you can set up the equation 2x = 42, where x represents the unknown number. To solve for x, you divide both sides by 2, which gives you x = 21. Therefore, 21 times 2 equals 42.