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1 Count back in ones from a four-digit number


2 Subtract a single-digit number from a four-digit number


3 Count back in tens from a four-digit number


4 Subtract a multiple of 10 from a four-digit number


5 Subtract a multiple of 100 from a four-digit multiple of 100


6 Count back in hundreds from a four-digit number


7 Subtract a multiple of 100 from a four-digit number


8 Add and subtract a multiple of 1000 from a four-digit number


9 Subtract mentally by finding the difference, targeting the ten, hundred or thousand


10 Subtract four-digit numbers using column subtraction


11 Exchange across zero to subtract four-digit numbers using column subtraction


12 Check answers using the inverse operation with four-digit numbers


13 Solve missing number problems for addition and subtraction with four-digit numbers


