If I wrote seven times two is equal to 14, this is absolutely true. One is two, four, six, eight, 10, 12, 14, so how did, how many times did we have to multiply two to get to 14? So, this is one, two, three,įour, five, six, seven. Our two, alright, our two, our multiples of two. So, what times two is equal to 14? Well, let's just look at We have star times two isĮqual to four, is equal to 14. If 20 divided by five is equal to four, four is equal to 20 divided by five. B is equal to four, so we could write four is equal to 20 divided byįive, which is absolutely true. To 20, so that tells us that B, B must be equal to four. Five times three is fifteen,įive times four is 20. So, five times what is equal to 20? Five times one is five,įive times two is 10. You could literally view thisĪs the same thing as saying that five times B is equal to 20. Well, what's 20 divided by 5? Well, there's a couple of Then this equation becomes nine is equal to 72 divided by eight, which is absolutely true. So, we can say that A is equal to 72 and if A is equal to 72, So nine times eight, nine times eight is equal to 72. In fact we already did a lot of our nine times tables down here, we could just keep going. So, what is nine times eight? Well, nine times one is nine, If I have nine in a group times eight groups, I must have Groups and I have nine in each group, that means Well, this is the same thingĪs saying that if A divided by eight is equal to nine, well that means that nine times eight must be equal to A. If we replace the smiley face with a six, then this equation is true. So, we now know that the smiley face, so smiley face must be equal to six. Notice I'm just adding nine each time, nine times four is 36. So, nine times what is equal to 54? Well, let's just skip count with nine and try to figure that out. Write that down, question mark, in this case, is equal to 24. So, question mark, so this is equal to 24, so question mark must be equal to 24. Six times two is twelve, six times three is eighteen, So, what is six times four? Well six times one is six, It is equal to six times four, which is the same thing as four times six. Well, this is the same thing as saying that question mark isĮqual to four times six, or you could say six timesįour, they're the same. Something divided by, so question mark divided by four is equal to six. Three times four is 12, so we could say that the blank needs to be equal to four. What we have to multiply by three to get to 12. ![]() ![]() For as long as I can remember, fractions have been the thorn in elementary school teachers’ sides. 3.NF.A.3: Explain equivalence of fractions in special cases and compare fractions by reasoning about their size. Multiply in columns 1-digit by 2 3 or 4 digits. Worksheet that walks students through multiplying a whole number by a mixed number using decomposition. To be in terms of a number? What is B? What is this star? So, pause the video now. I would like to take a closer look at two of my favorite third grade standards, 3.NF.A.3 and 3.OA.B.5. After practice in both the lesson ends by explaining how to turn mixed numbers into improper fractions and then multiply to find the answer to. Is this question mark? What is this smiley face? What does this letter A need Pause the video right now and try to figure out
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