![]() ![]() More 100ths beyond that, so you could think of it asħ4 100ths or 7/10 and 400ths, but either way, we are done. We have one, two, three, four, five, six, seven 10ths, and then we have four You could also think about it in terms of how many 10ths and You could just write twoĪnd 74 100ths like that, if you're pretty familiar with it. Now, if we wanna write it as a decimal, we would have two wholes, and then we could go to the 10ths place. ![]() So as a mixed number, this whole thing would represent 2 74/100. Represent 100th of a whole, and how many of theseġ00ths are filled in? Well, let's see, you haveġ0, 20, 30, 40, 50, 60, 70, and then you have 71, two, three, four. Only partially filled in, and we can see that it hasīeen divided into 100ths, you can see it's a 10 by 10 grid, so each of these squares This as a fraction, really it's going to be a mixed number, I would say that this over In this third whole, so if I'm gonna express So we have one whole, two wholes, and then partially shaded So pause this video and have a go at this. And once again, they want us to express the shaded area asīoth a fraction and a decimal. They say, once again, each big square below represents one whole. We could say, hey, that's going to be one, and then we get to the 10th place, and then how many 10ths do we have? We have two of them. Now, what about as a decimal? Well, we could just expressġ 2/10 as a decimal. Is split into 10ths, and we filled in two of them. So this is gonna be 1Ģ/10, and we're done. So as a mixed number, we have one and then you have two So we see that we have one whole here, the whole thing is filled out, so this is going to be one whole, and then over here, we have part of this second whole filled out, and it looks like we're dividing this whole into 10 equal sections, and then two of those are filled out. What would this be as a mixed number, and then what would it be as a decimal? All right, now let's do it together. Express the shaded area as both a mixed number and a decimal. Was already in the order that we needed it to be, but it's good that we checked on that.- We're told each big square below represents one whole. ![]() And so we would expect this expression to be close to 4000, and indeed, that's what this choice is. So five times 800, that would be around, that would be 4000. 5.2, well let's just say that's roughly 5. And so I'm already feeling good that this last choice sits down here. And so this should be about half of 800, so it should be around 400. Roughly equal to 1/2, and so, and 762, weĬould say hey, you know, that's, if we wanna be really rough, really, really approximate it, we could say, hey, it's roughly 800. Roughly equal to 50/100, roughly equal to 5/10, Now the second expression, 0.52 times 762. And so which of these is close to 38? Well this first one is 39.624, so that's actually the closest to 38. And so this first expression, this first product shouldīe roughly half of 76. It is 0.52, that's close to 50/100, that's close to a half, and so 76.2, that's close to 76. So this first expression, 0.52 times 76.2, the way I think about And then we can estimate what these expressions should be equal to, what the products should be equal to, to think about the decimal. ![]() These have the digits three, nine, six, two, four, in that order. The digits three, nine, six, two, four, in that order. Is, we can say, hey look, the answer is going to have Might have realized is all of these expressionsĭeal with the same digits as 52 times 762. And these products, this is an exercise on Khan Academy, you can move them around so the product can be matched Decimal models This math worksheet helps your child visualize decimals by reading the models to fill in the decimal or vice versa. Told to match each expression to its product. That 52 times 762 is equal to 39,624, and then we're ![]()
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