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Subtraction Across Zeroes By Jamie Unverzagt

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Hundreds Tens Ones Let’s model 102 minus 38. Begin by showing 102.

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Hundreds Tens Ones If you have 2 ones, can you take away 8 ones?

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Hundreds Tens Ones How can you get more ones? There are no tens to trade!

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Hundreds Tens Ones How many tens are in a hundred?

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Hundreds Tens Ones Hundred is the same as 10 tens! Good thinking!

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Hundreds Tens Ones Now can you get more ones?

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Hundreds Tens Ones How many tens and ones now? 912

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Hundreds Tens Ones What’s the next step? How many ones are left?

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Hundreds Tens Ones What’s the next step? How many tens are left? 6

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Hundreds Tens Ones Let’s model 203 minus 57. Begin by showing 203.

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Hundreds Tens Ones If you have 3 ones, can you take 7 ones away?

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Hundreds Tens Ones If 10 tens are in one hundred, how many tens are in two hundreds? 10 tens + 10 tens = 20 tens

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Hundreds Tens Ones Can you trade one of the 20 tens for ones? How many tens are left? 20 tens- 1 ten = 19 tens

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Hundreds Tens Ones That’s 19 tens left 19 tens 19 which is the same as 1 hundred and 9 tens.

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Hundreds Tens Ones How many ones do you have now? 1913

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Hundreds Tens Ones What is 13 ones minus 7 ones?

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Hundreds Tens Ones Finish subtracting You’ve Got It!

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Subtract Across Zeroes

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Subtract Across Zeroes

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Subtract Across Zeroes Slow Down! Don’t regroup if you don’t have to!

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Subtract Across Zeroes

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