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When you subtract with regrouping, remember the BBB rule:

When you subtract with regrouping, remember the BBB rule:. 4 13. 1 14. 5 3 - 2 5. I. 2 4 - 1 9. I. I. I. Excuse me, Mr. Ten?. When the b ig number is on the b ottom then you b orrow!. Subtraction Song. 2 8 If there’s more on the top– no need to stop! - 1 6.

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When you subtract with regrouping, remember the BBB rule:

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  1. When you subtract with regrouping, remember the BBB rule: 4 13 1 14 5 3 - 2 5 I 2 4 - 1 9 I I I Excuse me, Mr. Ten? When the big number is on the bottom then you borrow!

  2. Subtraction Song 2 8 If there’s more on the top– no need to stop! - 1 6 1 16 2 6If there’s more on the floor– go next door - 1 9and get ten more! I I 1 16 • 2 6If the numbers are the same– zero is the game! • 1 9 • 0 7 I I

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