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# Division

Math Concept
by

## Tiffany Groves

on 28 February 2013

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#### Transcript of Division

To divide is to share equally Division 1. Sharing Aspects of Dividing For example, if you share a bag of 21 marbles between yourself and two friends, dividing will tell you how many marbles each person can have. 2. Grouping For example, pretend you have 30 pieces of bubble gum and want to give 3 to each of your friends. Dividing will tell you how many friends you can give bubble gum to. "Sharing equally between how many each?" How many sets/sets of? How many groups/groups of? 21/3 21 3 Different Ways to Show Division Quotient A quotient is a whole number of times you can divide one number by another. Divisor The number you divide by. Dividend The number you are dividing. Remainder When you can't divide a number evenly, the remainder is the amount you have left over. Rounding After Dividing Sometimes you may need to round an answer up or down. The way you round your answer will depend on what you divided and why. FOR EXAMPLE: 21 3 8 30 3 - 24 _____ 6 - remainder 3 with a remainder of 6 will rounds up to 4. Let's practice!! A driver fills his truck with 20 gallons of gas. He uses 6 gallons of gas on each delivery trip. How many delivery trips can he sensibly make before filling his tank again? 20 6 3 -18 _____ 2 <--- (REMAINDER) You round down to 3. You must round down or the truck will run out of gas. ANSWER: Divisibility Rules DIVISIBLE BY TEST 2
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10 The last digit is 0, 2, 4, 6, 8. You can divide the sum of the digits by 3. The last two digits make a number you can divide by 4. The last digit is 5 or 0. The last digit is even and you can divide it by 3. The last three digits make a number you can divide by 8. You can divide the sum of the digits by 9. The last digit is 0. _________ _________ ________ ________ ________ ________ ________ _______ 21 DIVIDED BY 3 Revision 1. What are the two different aspects of division? 2. What are the four components that make up a division problem? 3. How many different ways can you write 20 divided by 4? 4. If your have a quotient of 10 with a remainder of 8, what will you round the quotient to?
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