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Subtracting larger numbers in your head is not always easy, so you can use the column method to take one number away from another. You write the larger number above the smaller number, so that the ...

Decompose numbers to subtract. Engage in a Number Talk focused on subtraction strategies. Decompose numbers to subtract. Engage in a Number Talk focused on subtraction strategies. Can you solve the ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hi superstars. My name's Ms. White and I'm so looking forward to being on this learning adventure with ...