Question Video: Multiplying by Six by Skip Counting by 6s on a Number Chart Mathematics • 3rd Grade

We can skip count by sixes on a number chart to help us multiply by 6. Use skip counting to find 6 × 2. Use skip counting to find 6 × 10.

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Video Transcript

We can skip count by sixes on a number chart to help us multiply by six. Use skip counting to find six multiplied by two. And then use skip counting to find six multiplied by 10.

The first part of this question tells us that we’re going to be multiplying by six. And to help us do this, we’re told that we can skip count by sixes on a number chart. Now, we could skip count by sixes on a number track or a number line, or maybe even just by thinking of the numbers in our heads. But when we use a number chart like this, we can not only seal the numbers that we’re skipping, but also we can spot patterns. If we look at this number chart, we can see that all of the multiples of six have been written in blue.

Let’s practice skip counting in sixes to begin with. Six, 12, 18, 24, 30, 36, 42, 48, 54, 60. And each of these numbers is found by adding six to the last number. But instead of saying every single number in the grid, we’ve skip counted by sixes. Now that we’ve circled these multiples of six, can you see what we meant by a pattern? We can see them in diagonal lines across the grid, can’t we? We can see that they’re all even numbers, too.

Now, the first thing we’re asked to do is to use skip counting to find the answer to six multiplied by two. Then, you might look at this multiplication and say, “Well, this is talking about a number of twos, six lot of twos, not a number of sixes.” But one thing we know about multiplications is that we can switch the numbers in a multiplication and it’ll still give the same answer.

So, we could think of this as six times two or two lots of six. We could think of six times two as meaning six repeated twice. So, let’s count in sixes twice to find the answer. Six, 12. We skip counted by sixes twice to find the answer. Two lots of six are 12.

Next, we’re asked to use skip counting to find six multiplied by 10. And again, we can think of this as 10 times six or skip counting by sixes 10 times. Well, we know how far we get when we skip count by sixes twice, so let’s carry on counting from there. 12 and then 18, 24, 30. That’s five sixes. Let’s carry on skip counting another five sixes. 36, 42, 48, 54, 60. This time, we’ve skip counted by sixes 10 times. And the last number we said was 60.

So, we use this number chart to help us skip count by sixes and find the answer to these six times tables facts. Six times two equals 12 and six times 10 equals 60.

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