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If you want to work it in your head, try this: 21 = 20 + 1, and if we multiply we get this: 21 x 5 = (20 + 1) 5 = (20 x 5) + (1 x 5) = (100) + (5) = 105 That's the distrubutive property of multiplicatin in action. We broke the 21 down into 20 + 1, and then when we multiply that by 5, we have to multiply each "component" of the number (that is, both the 20 and the 1) by 5 to get the answer. The 5 is "distributed" over the components that make up the 21, which are (in this case) the 20 and the 1. Each one is multiplied by 5 and then the two numbers are added up to get an answer.
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How many times does 21 go into 83?
Three (3.9524) times.
How many times does 21 go into 108?
108 ÷ 21 = 5 with remainder 3.
How many times does 21 go into 112?
To find out how many times 21 goes into 112, you would perform division. Divide 112 by 21 to get the quotient. In this case, 112 ÷ 21 equals 5 with a remainder of 7. Therefore, 21 goes into 112 five times with a remainder of 7.
How many times can 5 go into 105?
21
Is 105 divisible by 5?
yes, 21 times
