Multiplication Number Stories

Multiplication Number Stories free pdf ebook was written by on June 25, 2006 consist of 34 page(s). The pdf file is provided by www.qcsd.org and available on pdfpedia since March 25, 2012.

name home link 41 family note date time multiplication number stories today your child learned about another tool..group/mcgraw-hill does your answer make sense? 2. find equal groups of objects..stars for the numbers you rolled. how many stars are there...

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Multiplication Number Stories pdf




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Multiplication Number Stories - page 1
Name HOME LINK Date Time 41 Family Note Multiplication Number Stories Today your child learned about another tool to use when solving number stories, a multiplication/division diagram. It can help your child organize the information in a number story. With the information organized, your child can decide which operation ( , ) will solve the problem. Refer to pages 259 and 260 in the Student Reference Book for more information. Please return this Home Link to school tomorrow. 259 260 For the number story: Fill in a multiplication/division diagram. Write ? for the number you will find. Then write the numbers you know. Use counters or draw pictures to help you find the answer. Write the answer and unit. Check whether your answer makes sense. 1. Elsa buys 5 packages of apples for the party. There are 6 apples in each package. How many apples does she have? Answer: (unit) apples per packages package apples in all Does your answer make sense? Copyright © Wright Group/McGraw-Hill 2. Find equal groups of objects in your home, or around your neighborhood. Record them on the back of this page. Examples 3 lights on each traffic light, 12 eggs per carton 3. Write a multiplication number story about one of your groups. Use the back of this paper. Solve the number story. 85
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Multiplication Number Stories - page 2
Name LESSON Date Time 41 Exploring Equal Groups Work with a partner. Materials 1 six-sided die 1 sheet of plain paper 36 counters (for example: pennies, centimeter cubes, or dried beans) 6 quarter-sheets of paper Pretend that the quarter-sheets of paper are flags. Pretend that the pennies, cubes, or beans are stars. 1. Roll the die twice. The first roll tells how many flags to use. The second roll tells how many stars to put on each flag. 2. Work together to set up the flags and stars for the numbers you rolled. How many stars are there on all of the flags? 3. Use your sheet of plain paper and draw a picture. Show all flags. Draw dots to show all the stars on each flag. Copyright © Wright Group/McGraw-Hill 4. Repeat Steps 1–3. 86
Multiplication Number Stories - page 3
Name HOME LINK Date Time 42 Family Note Arrays Your child is learning how to represent multiplication problems using pictures called arrays. An array is a group of items arranged in equal rows and equal columns. Help your child use counters, such as pennies or macaroni, to build the array in each problem. Your child should record each solution on the dots next to the problem. Please return this Home Link to school tomorrow. 64 65 For the next few weeks, look for pictures of items arranged in equal rows and columns, or arrays. Look in newspapers or magazines. Have people in your family help you. Explain that your class is making an Arrays Exhibit. This is a 5-by-6 array. There are 5 rows. There are 6 dots in each row. There are 30 dots in all, since 5 6 30. Make an array with counters. Mark the dots to show the array. 1. 4 rows with 6 counters per row a 4-by-6 array counters 2. 3 rows with 8 counters per row a 3 8 array counters Copyright © Wright Group/McGraw-Hill 3. 2 rows with 12 counters per row a 2 12 array counters Practice Write these problems on the back of this page. Solve. Show your work. 4. 331 6. 907 27 479 5. 187 17 Unit 87
Multiplication Number Stories - page 4
Name LESSON Date Time 42 Materials Building Arrays cm cubes or other counters 1 six-sided die centimeter grid paper (Math Masters, p. 416) 1. Roll the die 2 times. The first number tells how many rows to put in the array. The second number tells how many counters to put in each row. Example You roll a 1 first and then a 5. You make this figure. 2. Draw the arrays you make on centimeter grid paper. 3. Then, fill in the Array Table below. How many cubes in each row? How many rows? How many cubes in all? 1 2 3 4 5 Copyright © Wright Group/McGraw-Hill 88
Multiplication Number Stories - page 5
Name LESSON Date Time 42 Square Products Work in a small group. Materials centimeter grid paper (Math Masters, p. 416) centimeter cubes or pennies (or both) tape Directions 1. Each person chooses a different number from 2 to 10. 2. Build an array that shows your number multiplied by itself. Use centimeter cubes or pennies. 3. Draw each array on centimeter grid paper. Write each number model under each array. 2 2 4 3 3 9 Copyright © Wright Group/McGraw-Hill 4 4 16 4. Continue to build arrays with other numbers. Draw the arrays on grid paper. You may need to tape pieces of grid paper together for the larger arrays. 5. Look at the arrays you made. Why do you think the products of the number models you wrote are called square products? 89
Multiplication Number Stories - page 6
Name HOME LINK Date Time 43 Family Note Division with Counters Your child is beginning to use division to solve number stories. A first step is to use counters, such as uncooked macaroni or pennies, to represent each problem. This helps your child to understand the meaning of division. Please return this Home Link to school tomorrow. 73 74 Show someone at home how to do division using pennies, uncooked macaroni, or other counters. 1. 25 counters are shared equally 2. 25 counters are shared equally by 5 people. counters per person counters remaining 3. 31 days in January by 10 people. counters per person counters remaining 4. 22 children 7 days per week weeks in January days remaining 5 children per team teams children remaining 5. Mrs. Blair has 34 pencils to give to her 15 students. How many pencils can she give each student? pencils pencils left over Copyright © Wright Group/McGraw-Hill 6. Caleb shared 22 jelly beans with his sister. How many jelly beans did each child get? jelly beans Practice jelly beans left over Write these problems on the back of this page. Solve. Show your work. 7. 9. 123 Unit 614 678 37 8. 23 8 90
Multiplication Number Stories - page 7
Name LESSON Date Time 43 Equal Groups of Cookies 1. Draw circles to show how many cookies are on each plate at the beginning of the story. 2. How many cookies did Grandma make altogether? 3. Tom and Hannah arrive. Now 4 children share the cookies. Draw a picture to show how they share the cookies. 4. Draw a picture to show how 6 children share. Copyright © Wright Group/McGraw-Hill 5. At the end, there are 12 children. If each child gets 3 cookies, how many cookies do they have altogether? Draw a picture to show how you found your answer. 91
Multiplication Number Stories - page 8
Name HOME LINK Date Time 44 Family Note Division Number Stories Help your child solve the division number stories by using counters such as pennies or uncooked macaroni to model the problems. Refer to pages 73, 74, 259, and 260 in the Student Reference Book. Your child is not expected to know division facts at this time. Please return this Home Link to school tomorrow. 73 74 259 260 Use counters or draw pictures to show someone at home how you can use division to solve number stories. Fill in the diagrams. 1. Jamal gave 24 marbles to 4 friends. marbles friends per friend marbles in all Each friend got the same number of marbles. How many marbles did each friend get? marbles How many marbles were left over? 2. Ellie had 29 cookies to put in marble(s) cookies bags per bag cookies in all 14 lunch bags. She put the same number in each bag. How many cookies did she put in each bag? cookies How many cookies were left over? 3. A sheet of stamps has 46 stamps. cookie(s) complete rows stamps per row stamps in all Copyright © Wright Group/McGraw-Hill Copyright © Wright Group/McGraw-Hill A complete row has 10 stamps. How many complete rows are there? complete rows How many stamps were left over? stamp(s) 92
Multiplication Number Stories - page 9
Copyright © Wright Group/McGraw-Hill Name Follow the directions to solve each problem. LESSON 44 1. 15 3 ? 0 15 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Start at 0. Show hops of 3. Stop at 15. How many hops? Equal Groups 2. 16 4 ? 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 16 4 Start at 0. Show hops of 4. Stop at 16. How many hops? Date 3. 18 6 ? 0 . Stop at 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 . How many hops? 18 6 Start at 0. Show hops of 4. 20 5 ? Time 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 . Stop at . How many hops? 20 5 Start at . Show hops of 93
Multiplication Number Stories - page 10
Name LESSON Date Time 44 Equal Sharing Mystery Number 1. Find the Mystery Number for three different Start Numbers. In Trial #1, the Start Number and 2nd Number should be less than 10. In Trial #3, the Start Number and 2nd Number should each have three digits. Use your calculator. Step What to Do Trial #1 Trial #2 Trial #3 1 2 3 4 5 6 Mystery Number! Start Number—write a number greater than 1. 2nd Number—write a number greater than 1. Multiply the Start Number times your 2nd Number. Subtract the Start Number from the number in Step 3. Subtract 1 from the 2nd Number. Divide the number in Step 4 by the number in Step 5. 2. Look for patterns in the table and discuss the patterns with a partner. 3. Predict what the Mystery Number will be if the Start Number is 4. Copyright © Wright Group/McGraw-Hill 4. Use counters to show what happened when you followed the steps in Trial #1. Draw a picture on the back of this page. 94
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