WEBVTT
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What are the two missing numbers in this table?
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Can you see where the two missing numbers belong?
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They’re both in the bottom row, here and here.
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Now, for us to understand what these two missing numbers might be, we need to understand how this table works.
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Can you see a clue that might help us?
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This table is all about multiplying by two.
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We take a number from the top row, multiply it by two, and then that gives us the number in the bottom row.
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It’s a little bit like the idea of a multiplying machine, where a number goes in, it gets multiplied by two, and then a different number comes out.
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This is exactly what’s happening in our table.
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Number one on the top row gives us number two on the bottom row.
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One times two equals two.
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And number two on the top row gives us four on the bottom row because two times two equals four.
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So, we can see then that our two missing numbers are going to be what we get when we multiply three by two and what happens when we multiply six by two.
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Now, we could think about each of these facts completely separately.
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We could think about three times two and then six times two.
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But these two facts are linked.
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Can you see what the link is between three and six?
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We know that if we double three, we’d get six.
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So, do you think if we double the answer to three times two, we might find the answer to six times two?
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Let’s see whether multiplications work like this.
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Three times two is worth two, four, six.
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So, we know that our first missing number is six.
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Can you predict what our second missing number’s going to be?
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We can take the answer for three times two and then double it.
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And six doubled is 12.
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Let’s count in twos and see whether the number 12 fits in the pattern.
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Two, four, six, eight, 10, 12.
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It worked!
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We multiplied three by two to find our first missing number.
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And we knew that we could double the answer to three times two to find the answer to six times two.
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This gave us our second missing number.
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Three times two is six.
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And six times two is 12.
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Our two missing numbers are six and 12.