Topic 10: Division Sam Mkumbo 3rd grade

Topic 10:DIVISION Division: is an operation that is used to find how many equal groups or how many are in each group. Dividend-Is the number of objects to be divided. Divisor-Is the number by which another number is divided. Quotient-Is the answer to a division Problem.

Division Separates a Total into Equal Groups. __50___ ÷__10__________=____5_____ Total Number of equal groups Number in each group.

Topics 10-01: Division is sharing Four dogs have 24 chew toys to share. How many toys will each dog get? [------------------24 chew toys---------------] 24÷4=6 Each dog gets 6 chew toys. 6 chew toys

Topic10-2:Division as Repeated Subtraction Mr. Jones has 24 apples to serve his to students, if each students gets 6 apples, how many students can he serve? |------------------24------------| ❻ ------------->Students ? 24-6=18 18-6=12 24÷6=4 12-6=6 6- 6=0 Mr. Jones can serve 4 students.

Topic10-3: Writing Division Stories. Bob has 20 marbles, he wants an equal number of marbles in each of 4 bags. How many marbles should Bob put in each bag? 20÷4=? |----------20--------| ❺❺❺❺

Topic10-4: Relating Multiplication and Division. Fact family shows how multiplication and division relates. 4x2=8 8 ÷4=2 2x4=8 8÷2=4 - Both use the numbers 2,4 and 8. -Product and the Dividend are the same number showing the total number of object.

Topic 10-05:Fact Families with 2,3,4 and 5 Mathew has 15 balls. He wants to give them to 3 of his friends. How many balls will each friend get ? 3X__= 15 3 X 5=15 15÷ 3= 5 Suzy baked 12 pies for 3 teachers. How many pies will each teacher get? 3 x __ = 12 3x4= 12 12÷ 3 =4

Topic10-6:Fact Families with 6 and 7 The basketball team has 42 players . The coach wants 7 players in each group. How many groups will there be? 7x_?_=42 42÷ 7=6 7x6=42 6groups. If each group has 6 players-: 6x_?_=42 42÷6=7 6x7=42 7groups.

Topic10-07:Fact Families with 8 and 9 Rex bought 63 sticks for making toys . If he made 9 toys, how many sticks did Rex use for each toy? [-----------------63 sticks----------------] __ 9x__=63 63÷9= 7 9x7=63 ?

Topic 10-08: Dividing with 0 and 1. You can not divide by Zero. 3÷0= 0x___=3 0 divided by any number except 0 is 0. 0÷3= 3X0=0 Any number divided by 1(except 0)is itself. Bob bought 3 flowers, how many vases will he need if he put one flower in each vase? 3÷1=3 3÷3=1

Topic10-09:Division Patterns. NUMBER OF CASES 1 2 3 4 5 NUMBER OF PENCILS 6 12 18 24 30 NUMBER OF PENS 7 14 21 28 35 Mary is putting pencils and pens into cases. How many cases will she use for 18 pencils and 21 pens? 18÷6= 3 21÷7=3 She will use 3 cases for 18 pencils and 21 pens.

Topic10-10:Solving-:Draw a picture and Write a Number Sentence. Bill is putting flour from 1 bag into 6 cups. What is the total amount of flour in each cup? [ --------------------36pounds-----------------] The table shows there is a total of 36 pounds. 36÷6=? ?=6 6+6+6+6+6+6=36 6X6=36 Each cup holds 6 pounds. 6 pounds