Math

MATH NEWS

  •  Here is the video for completing long division with 2-digit divisors. I hope you find it helpful.

    https://youtu.be/HdU_rf7eMTI

    This week, we will be completing Topic Four-Dividing by 1-Digit Divisors

    I will be teaching the students two different ways to do division, especially for Topic Five-Dividing by 2-Digit Divisors

    VOCABULARY

    DIVISOR--This is the number you are dividing by. It is the second number if the problem is written like  24 divided by 2. The 2 is the divisor. If the problem is written in the standard format, the divisor is the number outside the box.

    DIVIDEND--This is the number being divided. It is the first number written, if the problem is written like 24 divided by 2. The 24 is the dividend. If the problem is written in standard form, the dividend is the number inside the box. The dividend is also usually the largest number

    QUOTIENT--This is the answer to the division problem.

    REMAINDER--After you divide, multiply back, and subtract, you check the number you now have. If the number is smaller than the divisor and you have no digits to bring down, this number becomes the remainder.

    The first method uses the acronym: DOES MCDONALD'S SERVER CHEESE BURGERS REGULARLY 

    The D represents "divide".

    The M represents "multiply back".

    The S represents "subtract".

    The C represents "check".

    The B represents "bring down".

    The R represents "remainder".

    These are the steps to solving a division problem. The tricky part is when you get to "check". If the answer after you subtract is smaller than the divisor, you need to go to "B" or bring down the next digit. If the answer after subtracting is greater than the divisor, you immediately go back to "D" or divide and begin again.

    The second method is a new way to complete long division. It is called 1-2-4-8 Divide. I have attached the Power Point for how to do this below. I will be showing it to the students and they will then be able to use it, if they wish.

    1-2-4-8 Divide