Problem Solving with multiplication adn division

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Problem Solving with Multiplication & Division:

Problem Solving with Multiplication & Division

Standard Use multiplication and division within 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.:

Standard Use multiplication and division within 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

In Kid Terms I can use multiplication and division to solve word problems using arrays, groups, & unit bars.:

In Kid Terms I can use multiplication and division to solve word problems using arrays, groups, & unit bars.

Review :

Review Addition Key Words B A I T S oth ltogether n All otal um Subtraction Key Words M M M L L C D F u ch More any More u ch Further eft ess hange ifference ewer

Kicking It Up a Notch:

Kicking It Up a Notch Multiplication Key Words P E G S er ach roups ets Division Key Words S P E E D S er hare ach ivide qual plit Do you notice something that could confuse you? Some of the key words are the same!

How do you know when to multiply or divide?:

How do you know when to multiply or divide? Multiplication is Number of parts x Number in each part = Total Three Groups with 4 Stars in Each Group= 12

How do you know when to multiply or divide?:

How do you know when to multiply or divide? Division is The Total ÷ # of Groups = # in Each Group OR The Total ÷ # in Each Group = # of Groups There are 8 smiley f aces DIVIDED into 2 groups.

Let’s Solve Some Multiplication Problems :

Let’s Solve Some Multiplication Problems

Problem Solving Song (To the tune of Found a Peanut) Read the problem Find the question Find and circle the key words Use the unit bars To draw a picture Solve the problem Check your work :

Problem Solving Song (To the tune of Found a Peanut) Read the problem Find the question Find and circle the key words Use the unit bars To draw a picture Solve the problem Check your work

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Four children are playing tennis together. They each brought six tennis balls. How many tennis balls do they have total ? Read the problem. Find the question. Find and circle the key words. Use the unit bars to draw a picture. Think about what we know. Do we know the number of groups? Do we know how many are in each group? Do we know the total? How many groups? How many in each group? 6 6 6 6 Solve the problem. What is the total? = 4 times I add 6 = 4 x 6= 24 Check your work!

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A town has three post offices. In each post office there are five workers. How many workers do the post offices have in total? Read the problem. Find the question. Find and circle the key words. Use the unit bars to draw a picture. Think about what we know. Do we know the number of groups? Do we know how many are in each group? Do we know the total? How many groups? How many in each group? 5 5 5 Solve the problem. What is the total? = 3 times I add 5 = 3 x 5= 15 Check your work!

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An apartment has 4 bedrooms. Each bedroom has 3 bookcases . How many bookcases are there in the apartment? Read the problem. Find the question. Find and circle the key words. Use the unit bars to draw a picture. Think about what we know. Do we know the number of groups? Do we know how many are in each group? Do we know the total? How many groups? How many in each group? 3 3 3 Solve the problem. What is the total? = 4 times I add 3 = 4 x 3= 12 Check your work! 3

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There are 60 minutes per hour . How many minutes are there in 5 hours? Read the problem. Find the question. Find and circle the key words. Use the unit bars to draw a picture. Think about what we know. Do we know the number of groups? Do we know how many are in each group? Do we know the total? How many groups? How many in each group? 60 60 60 Solve the problem. What is the total? = 5 times I add 60 = 5 x 60= 300 Check your work! 60 60

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The Riordan family is packing five boxes to move. They pack eight books per box. How many total books do they pack ? Read the problem. Find the question. Find and circle the key words. Use the unit bars to draw a picture. Think about what we know. Do we know the number of groups? Do we know how many are in each group? Do we know the total? How many groups? How many in each group? 8 8 8 8 Solve the problem. What is the total? = 5 times I add 8 = 5 x 8= 40 Check your work! 8

Let’s Solve Some Division Problems :

Let’s Solve Some Division Problems

Problem Solving Song (To the tune of Found a Peanut) Read the problem Find the question Find and circle the key words Use the unit bars To draw a picture Solve the problem Check your work :

Problem Solving Song (To the tune of Found a Peanut) Read the problem Find the question Find and circle the key words Use the unit bars To draw a picture Solve the problem Check your work

How do you know when to multiply or divide?:

How do you know when to multiply or divide? Multiplication is Number of parts x Number in each part = Total Don’t Kn ow TOTAL X

How do you know when to multiply or divide?:

How do you know when to multiply or divide? Division is The Total ÷ # of Groups = # in Each Group The Total ÷ # in Each Group = # of Group Know TOTAL ÷

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Bruce gets 8 new baseball cards. If the cards come in packs of 4 , how many packs of cards did Bruce get? Read the problem. Find the question. Find and circle the key words. Use the unit bars to draw a picture. Think about what we know. Do we know the number of groups? Do we know how many are in each group? Do we know the total? = 8 How can we show groups of 4 that equal 8? 4 4 8 split into groups of 4= 8 ÷ 4= 2 groups Check your work.

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Sandy has 40 dollars split into five dollar bills. How many five dollars bills does she have ? Read the problem. Find the question. Find and circle the key words. Use the unit bars to draw a picture. Think about what we know. Do we know the number of groups? Do we know how many are in each group? Do we know the total? = 40 How can we show groups of 5 that equal 40? 5 5 40 split into groups of 5= 40 ÷ 5= 8 groups Check your work. 5 5 5 5 5 5

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Fred, Benny, and Tim have 24 rulers all together. If the rulers are equally divided, how many will each person get ? Read the problem. Find the question. Find and circle the key words. Use the unit bars to draw a picture. Think about what we know. Do we know the number of groups? Do we know how many are in each group? Do we know the total? What is the total? = 24 How can we show 3 equal groups that equal 24? 8 8 24 shared into 3 groups= 24 ÷ 3= 8 shares Check your work. 8

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Joan goes fishing with Mike. They catch 16 trout . If they equally share up the trout, how may will each one get ? Read the problem. Find the question. Find and circle the key words. Use the unit bars to draw a picture. Think about what we know. Do we know the number of groups? Do we know how many are in each group? Do we know the total? What is the total? = 1 6 How can we show 16 equally shared in 2 groups? 8 8 16 shared into 2 groups= 16 ÷ 2= 8 shares Check your work.

Kicking It Up a Notch:

Kicking It Up a Notch Multiplication Key Words P E G S er ach roups ets Division Key Words S P E E D S er hare ach ivide qual plit

How do you know when to multiply or divide?:

How do you know when to multiply or divide? Multiplication is Number of parts x Number in each part = Total Three Groups with 4 Stars in Each Group= 12

How do you know when to multiply or divide?:

How do you know when to multiply or divide? Division is The Total ÷ # of Groups = # in Each Group OR The Total ÷ # in Each Group = # of Groups There are 8 smiley f aces DIVIDED into 2 groups.

How do you know when to multiply or divide?:

How do you know when to multiply or divide? Multiplication is Number of parts x Number in each part = Total Don’t Kn ow TOTAL X

How do you know when to multiply or divide?:

How do you know when to multiply or divide? Don’t Kn ow TOTAL X Four children are playing tennis together. They each brought six balls. How many balls do they have total ?

How do you know when to multiply or divide?:

How do you know when to multiply or divide? Don’t Kn ow TOTAL X An apartment has 4 bedrooms. Each bedroom has 3 bookcases . How many bookcases are there in the apartment?

How do you know when to multiply or divide?:

How do you know when to multiply or divide? Division is The Total ÷ # of Groups = # in Each Group The Total ÷ # in Each Group = # of Group Know TOTAL ÷

How do you know when to multiply or divide?:

How do you know when to multiply or divide? Know TOTAL ÷ Joan goes fishing with Mike. They catch 16 trout . If they equally share up the trout, how may will each one get ?

How do you know when to multiply or divide?:

How do you know when to multiply or divide? Know TOTAL ÷ Fred, Benny, and Tim have 24 rulers all together. If the rulers are equally divided, how many will each person get ?

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