Video: Completing Multiplication Table Problems

Complete: 9 × _ = 81.

00:49

Video Transcript

Complete nine times blank equals 81.

Consider this image. This image has nine rows. And to total of 81 pink dots, we need to know how many sets of nine rows are there. One, two, three, four, five, six, seven, eight, and nine. There are nine sets of nine rows. And that shows us that it takes nine times nine to equal 81. Nine times nine equals 81.

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