Algebra

Multiplying decimals example | Decimals | Pre-Algebra | Khan Academy

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If we are asked to multiply 32.12, or 32 and 12 hundreds, × 0.5, or 5 scores Now when you do multiply decimal numbers, we multiply them As we do when multiplying integers, and Then we calculate the numbers behind the decimal places In the two numbers, then On that basis, we put the decimal point in the result Let me show you what I said Let’s multiply those two numbers We have 32.12 x 0.5 When you type them, you can move the decimal point to the right And ignore it Now, you can write decimal numbers as 3212 x 5 Then we look at the decimal point Let’s Begin If we’re going to hit 5 x 3212 Well, 5 x 2 = 10 We put 1 in the hand 5 x 1 = 5, + 1 = 6 5 x 2 = 10 Keep in hand 1 Finally, we have 5 x 3 = 15, + 1 = 16 We no longer have any other numbers If we had 05, we would not multiply by 0 Of all these numbers, of course That is, we will eventually get 0 5 x 3212 The result is this number Now we will look at the decimal point We have to count the number of houses Behind decimal places In the two numbers we multiplied So we have one, two, three houses, on Right of the decimal point in the two numbers that we have By hitting them And based on this number of homes we have to put the decimal point In the output So we go one, two, thirty we put the comma here So 32.12 x 0.5 = 16.060 And we can ignore this last zero in the output, because it is It does not give any value to the outcome So we can write the result in this image 16.06 The last thing to do is to check The answer is logical We have a number close to 32, and Multiply it by 0.5 And remember, 0.5 is the same 5/10, i.e. what Equivalent to 1 m 2 So, in fact, we multiplied 32.12 x 1/2 That is, we tried to find a value of half of the 32.12 Half of 32 is 16, half of 0.12 is 0.06, and that’s the result Very logical

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