WEBVTT
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There are lots of ways to make 10.
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What is the missing sum?
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The figure shows us ways to make 10.
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These are also known as number bonds.
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We need to find this missing sum.
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Let’s take a look at the number bonds.
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Listen carefully as we read each one to see if you can notice a pattern: zero plus 10, one plus nine, two plus eight, three plus seven, four plus six, five plus five, and this is the missing sum.
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Did you notice any patterns in the numbers or the sequence of numbers?
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Did you notice the pattern?
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As we count down each row, the number in this column increases by one each time.
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So our missing number comes after number five.
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Six is one more than five.
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Now, we have the first missing number in our sum.
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Let’s look at the numbers in this column: 10, nine, eight, seven, six, five, the missing number, three, two, one, zero.
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These numbers are decreasing by one each time.
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This missing number must be four because four is one less than five.
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Now, we have our missing sum: six plus four equals 10.
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The missing sum is six plus four.