This math skill teaches how to use a number line to add two positive integers. It involves starting at zero, moving to the first number, then adding a second number by moving further along the line to find the sum.
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Number line addition with positive integers
Test your understanding of number line addition by practicing it! Work through the below exercises to use it in practice.
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What addition expression does this number line show?
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The first number we move to from zero is 9, so that's our starting value
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Then we move further along the number line by 5, so that's a plus 5.
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We land on 14, so this number line is showing the equation 9 plus 5 equals 14