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Current time:0:00Total duration:2:58

Video transcript

this here is a screenshot from this exercise on Khan Academy it says the number 48 is six times as many as 8 right this comparison as a multiplication equation so pause this video and see if you can have a go at that all right so it sounds very fancy this comparison is a multiplication equation but really there's asking us to write this as an equation and if we were on Khan Academy we would type it in here but I'm just going to do it this is a screenshot so I'm just going to do it by pen by digital pen so they're saying the number 48 the number 48 and when they say is that's another way another way of interpreting is is to say hey that's equal to something now what does that equal to that's equal to 6 times as many as 8 well what's another way to write 6 times as many as 8 well we could write that as 6 times 8 so this right over here this is that comparison written as a multiplication equation that's all they're asking for and so you would type that in right over there let's do another example here we are told or we are asked what statement represents the equation 7 times 4 is equal to 28 so pause this video and think about which choice would you pick so let's see choice a says 28 is 7 more than 4 first of all that's not true 28 is not 7 more than 4 but if you were to write this comparison as an equation this would be that 28 is so is equal to 7 more than 4 is 7 plus 4 not only is that not true but that's not the original equation so we rule that out 28 is 7 times as many as 4 what is interesting 28 28 is is equal to 7 times as many as 4 7 times 4 well the only difference between this and this is just we've swapped the sides on the Equality which is completely ok so 28 is equal to 7 times 4 that's the same equation really as 7 times 4 is equal to 28 so I like this choice now let's just look at the other choices 7 is 4 as many as 28 that plays with your head a little bit but let's just write it as an equation 7 is so that would be equal to 4 times as many as 28 that would be 4 times 28 1 this is not true 4 times 28 is over a hundred and so it's not seven but this is also very different than what we see up here so we'd rule that out 7 is 4 less than 28 well this equation would be 7 is so is equal to 4 less than 28 so for less than 28 would be 28 minus 4 once again not only is this not true 28 minus 4 is 24 not seven but this is not that original equation so we'd rule that one out as well so we like our choice be