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Subtract 9 from 3-digit numbers.
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Finding the difference between two numbers as well as making subtraction number sentences from the numbers given.
Use knowledge to subtract a single digit from a teen number quickly and efficiently. Rather than just counting up in ones, look for two steps, firstly to ten and then to the number.
Remember that subtractions can also be done by subtracting the nearest whole ten and adjusting.
Subtract a single digit from a 3-digit number with base 10 blocks.
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