This math skill involves using a number line to perform subtraction with positive integers. It demonstrates starting from an initial value, moving leftwards by a decrement amount, and arriving at the result, thus forming a basic subtraction equation.
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Number line subtraction with positive integers
Test your understanding of number line subtraction by practicing it! Work through the below exercises to use it in practice.
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What subtraction expression does this number line show?
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The first number that we get to when we move from zero is 11, so that's our starting value.
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Now we move lower, or to the left on the number line, by 4, so that's minus 4
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And we land on 7, so our subtraction equation is 11 minus 4 equals 7