6 pumpkins. Solve the story problem zebras play. Then some more come to play. Now there are 13 zebras. How many zebras come to play?

Transcription

1 5-1 Solve the story problem. Show your work. Use drawings, numbers, or words zebras play. Then some more come to play. Now there are 13 zebras. How many zebras come to play? 4 zebras 2. There are 12 pumpkins on the porch. 6 are small and the others are large. How many are large? 6 pumpkins 3. Maya sees some ducks in a pond. 9 more ducks swim over. Now she sees 14 ducks. How many ducks did Maya see before? 5 ducks Find the unknown partner = = 16 zebras pumpkins pond = = = = 13 UNIT 5 LESSON 1 Unknown Partners with Teen Totals 111

2 5-1 Subtract _ _ _ _ Find the unknown partner Count on to add = = = = = = Stretch Your Thinking I see some birds. 8 more birds come. Now I see 12 birds. How many birds did I see before? 4 birds 112 UNIT 5 LESSON 1 Unknown Partners with Teen Totals

3 5-2 Solve the story problem. Show your work. Use drawings, numbers, or words apples are on a table. Then someone takes 6 of them. How many apples are on the table now? 8 apples table toy trucks are on the floor. I put 3 of them away. How many toy trucks are still on the floor? 9 toy trucks toy truck Subtract. Use any method = = = = = = = = = 9 UNIT 5 LESSON 2 Subtraction with Teen Numbers 113

4 5-2 Write the partners and total for each circle drawing Total 9 Total Write the teen number Solve the story problem. Show your work. Use drawings, numbers, or words. 5. Emilio has a box of pencils and 5 extra pencils. How many pencils does he have? 15 pencils 6. Stretch Your Thinking Draw to show how to make a ten to subtract pencil Check children s work. 114 UNIT 5 LESSON 2 Subtraction with Teen Numbers

5 5-3 Solve the story problem. Show your work. Use drawings, numbers, or words. 1. David makes 13 pots in art class. 5 of them break. How many pots are left? 8 pots bears are at a picnic. Some bears go home. 9 bears are still at the picnic. How many bears go home? 7 bears pots picnic 3. We see 15 barns today. Some are red and some are white. How many red and white barns can there be? Show three answers. red barns and 5 white barns 9 6 white barns or red barns and or 8 red barns and 7 Add _ _ _ 6 white barns _ barns Answers will vary. Sample answers are given. UNIT 5 LESSON 3 Mixed Practice with Teen Problems 115

6 5-3 Write how many Subtract. Use any method = = = = = = Stretch Your Thinking Write a subtraction story problem for a total of 14. Solve it. Stories will vary. Check children s work. 116 UNIT 5 LESSON 3 Mixed Practice with Teen Problems

7 5-4 Solve the story problem. 1. Hakim draws 8 stars. Lisa draws 7 stars. How many stars do they draw altogether? 15 stars 2. There are 13 markers in a box. Jorge takes some out. Now there are 8 in the box. How many markers does Jorge take out of the box? 5 markers Show your work. Use drawings, numbers, or words. star Markers box 3. Karla plants 7 flowers. Then she plants 5 more flowers. How many flowers does Karla plant? 12 flowers Subtract _ _ _ _ flower UNIT 5 LESSON 4 Small Group Practice with Teen Problems 117

8 5-4 Find the total number of toys train cars in the box 2. 5 bears in the box Add. Total 7 Total = = = = = = 9 Solve the story problem. Show your work. Use drawings, numbers, or words. 9. Stella picks 8 red flowers and 9 yellow flowers. How many flowers does she pick? 17 flowers. Stretch Your Thinking Noah makes a ten to solve Exercise 9. Draw to show how Noah solved the problem. flower Check children s work. 118 UNIT 5 LESSON 4 Small Group Practice: Teen Problems

9 5-5 Solve the story problem. 1. Ted has 4 cousins that live in the city and 8 cousins that live on a farm. How many cousins does Ted have? 12 cousins 2. Today, 9 geese land in our yard. Then 7 more geese come. How many geese are there? 16 geese 3. A store has 13 jackets. Some jackets are sold. There are 8 left. How many jackets are sold? 5 jackets 4. Nathan sees 16 windmills. Only 9 are spinning. How many windmills are not spinning? 7 windmills Show your work. Use drawings, numbers, or words. city goose jacket windmill UNIT 5 LESSON 5 Teen Problems with Various Unknowns 119

10 5-5 Write the -partners and the switched partners Count on to find the unknown partner = = = 7 Solve the story problem. 5. There are 7 ants on the leaf. Then 5 more ants come. How many ants are there in all? 12 ants Show your work. Use drawings, numbers, or words. 6. Stretch Your Thinking Emma has 16 crackers. She eats some. Could she have 16 crackers left? Explain. No. Possible explanation: If she eats some, then the number of ant crackers left must be less than UNIT 5 LESSON 5 Teen Problems with Various Unknowns

11 5-6 Ring the -partners. Find the total = = = = = = 17 Solve the story problem. Show your work. Use drawings, numbers, or words. 7. I draw 7 pictures of animals, 3 pictures of people, and 6 pictures of houses. How many pictures do I draw? 16 pictures 8. I have 9 white marbles, 5 blue marbles, and 3 green marbles. How many marbles do I have in all? 17 marbles house marble UNIT 5 LESSON 6 Problems with Three Addends 121

12 5-6 Add 1 ten = = = = = = 50 Write the next number Solve the story problem. Show your work. Use drawings, numbers, or words cars are in the parking lot. Then 6 more cars come. How many cars are there now? 14 cars 12. Stretch Your Thinking Look at the story problem in Exercise 11. What if 4 more cars come to the lot? How would you solve the problem? Order of addends may vary. car = UNIT 5 LESSON 6 Problems with Three Addends

13 5-7 Color each -group a different color. Count by tens and ones. Write the number Check children s work UNIT 5 LESSON 7 Count with Groups of 123

14 Write the numbers from Ring the -partners. Find the total = = = = 15 Add = = = = 8. Stretch Your Thinking Draw 20 stars. Ring the -groups. Check children s work. 124 UNIT 5 LESSON 7 Count with Groups of

15 5-8 Number the houses in this town. Ring the number that is more than 36. Cross out the number that is less than UNIT 5 LESSON 8 Make a Hundred Grid 125

16 5-8 Draw -sticks and circles Add = = = = = = Ring -groups. Count by tens and ones. Write the number. 9. Check children s work Stretch Your Thinking Write numbers to solve. 0 is 1 more than is less than UNIT 5 LESSON 8 Numbers Through

17 5-9 Continue the pattern. Write the number that is more Add tens = = = = Subtract tens = = = = = = 30 UNIT 5 LESSON 9 Add and Subtract Tens 127

18 5-9 Ring the -partners. Find the total = = = = 15 Compare the numbers. Write <, >, or = < < = = > > 63 Solve the story problem. Show your work. Use drawings, numbers, or words. 11. Madison has a box of crackers and 8 extra crackers. How many crackers does she have? 18 crackers 12. Stretch Your Thinking Start at 48. Add 3 tens. Then add 4 ones. Draw to show your work. What is the number? 82 cracker Check children s work. 128 UNIT 5 LESSON 9 Add and Subtract Tens

19 5- Solve = = = = = = = = = = = = = = = = = = = = = = 70 UNIT 5 LESSON Add and Subtract Multiples of 129

20 5- Subtract = = = _ _ _ Find the total. Use any method = = = = 43 Continue the pattern. Write the number that is more Stretch Your Thinking Start with 50. Add 1 ten. Then subtract 2 tens. Draw to show your work. What is the new number? 40 Check children s work. 130 UNIT 5 LESSON Add and Subtract Multiples of

21 5-11 Draw to show the numbers. Write the numbers to solve. Sample answer shown. Charlie gathers apples, pears, and plums. The numbers of apples and plums are -partners. There are the same number of apples and pears. How many pieces of fruit could Charlie gather? Apples Pears Plums 7 apples + 7 pears + 3 plums =? 7 + = 17 pieces of fruit UNIT 5 LESSON 11 Focus on Mathematical Practices 131

22 5-11 Write how many leaves. See the 5 in each row Solve = = = = = = = = Stretch Your Thinking Write and solve a story problem about gathering three kinds of vegetables. Use -partners. Sample answer: Anna gathers 5 ears of corn, 3 carrots, and 5 cucumbers. How many vegetables does she gather? 13 vegetables 132 UNIT 5 LESSON 11 Focus on Mathematical Practices