c h a pte r 7 numbers to 20...2. fill in the blanks. 3. write two numbers that are greater than 7.,...

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103 Reteach 1A Name: Date: © 2009 Marshall Cavendish International (Singapore) Private Limited. Copying is permitted; see page ii. C H A P T E R Numbers to 20 7 Worksheet 1 Counting to 20 Circle the correct number and word. 1. 4 5 6 7 four ve six seven Match. 2. 5 six 10 nine 8 ve 6 eight 9 two 2 ten

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Page 1: C H A PTE R 7 Numbers to 20...2. Fill in the blanks. 3. Write two numbers that are greater than 7., 4. Write two numbers that are less than 6., 5. 3 more than 8 is . 6. 4 less than

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CHAPTER

Numbers to 207Worksheet 1 Counting to 20Circle the correct number and word.

1.

4 5 6 7

four fi ve six seven

Match.

2. 5 six

10 nine

8 fi ve

6 eight

9 two

2 ten

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Page 2: C H A PTE R 7 Numbers to 20...2. Fill in the blanks. 3. Write two numbers that are greater than 7., 4. Write two numbers that are less than 6., 5. 3 more than 8 is . 6. 4 less than

Chapter 7 Lesson 1104

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Count on. Fill in the blanks.

1211 1310, , ,

There are .

Example

3.

20 19 18 17 16 15 14 13 12

11

10, , , , ,

eleven twelve thirteen fourteen

, , , ,

fi fteen sixteen seventeen eighteen

, nineteen twenty

There are .

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Page 3: C H A PTE R 7 Numbers to 20...2. Fill in the blanks. 3. Write two numbers that are greater than 7., 4. Write two numbers that are less than 6., 5. 3 more than 8 is . 6. 4 less than

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Count on.Fill in the blanks.

4. 10

There are penguins.

5. 10

There are mushrooms.

6. 10

There are pots.

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Page 4: C H A PTE R 7 Numbers to 20...2. Fill in the blanks. 3. Write two numbers that are greater than 7., 4. Write two numbers that are less than 6., 5. 3 more than 8 is . 6. 4 less than

Chapter 7 Lesson 1106

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Count. Fill in the blanks.

7.

There are . Count on from

.

8.

There are .

Write the numbers.

9. thirteen 10. seventeen

11. eleven 12. twenty

13. fourteen 14. nineteen

15. fi fteen 16. twelve

17. sixteen 18. eighteen

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Page 5: C H A PTE R 7 Numbers to 20...2. Fill in the blanks. 3. Write two numbers that are greater than 7., 4. Write two numbers that are less than 6., 5. 3 more than 8 is . 6. 4 less than

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Match.

19. 11 seventeen

20 nineteen

15 twelve

18 sixteen

12 twenty

17 fourteen

13 eleven

19 fi fteen

14 thirteen

16 eighteen

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Page 6: C H A PTE R 7 Numbers to 20...2. Fill in the blanks. 3. Write two numbers that are greater than 7., 4. Write two numbers that are less than 6., 5. 3 more than 8 is . 6. 4 less than

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Chapter 7 Lesson 1

Fill in the blanks.

10 and make .

Ten and make eighteen.

+ 8 =

Example

20.

10 and make .

Ten and make fourteen.

+ 4 =

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Page 7: C H A PTE R 7 Numbers to 20...2. Fill in the blanks. 3. Write two numbers that are greater than 7., 4. Write two numbers that are less than 6., 5. 3 more than 8 is . 6. 4 less than

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Worksheet 2 Place ValueCircle a group of ten.Count on.Then fi ll in the place-value charts.

Example

Tens Onesplace-value

chart

1.

Tens Ones

2.

Tens Ones

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Chapter 7 Lesson 2

Fill in the blanks and the place-value charts.

Example

Tens Ones

16 = ten ones

3. 13 = ten ones

Tens Ones

4. 18 = ten ones

Tens Ones

5. 17 = ten ones

Tens Ones

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Page 9: C H A PTE R 7 Numbers to 20...2. Fill in the blanks. 3. Write two numbers that are greater than 7., 4. Write two numbers that are less than 6., 5. 3 more than 8 is . 6. 4 less than

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Show the number.

Draw for tens and for ones.

Tens Ones

Example

15 = ten ones

6. 19 = ten ones

Tens Ones

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Chapter 7 Lesson 2

7. 12 = ten ones

Tens Ones

8. 14 = ten ones

Tens Ones

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Page 11: C H A PTE R 7 Numbers to 20...2. Fill in the blanks. 3. Write two numbers that are greater than 7., 4. Write two numbers that are less than 6., 5. 3 more than 8 is . 6. 4 less than

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Worksheet 3 Comparing NumbersCompare. Check (✓) the box that has more items.

1.

2.

Fill in the blanks.

3. Write two numbers that are greater than 7.

,

4. Write two numbers that are less than 6.

,

5. 3 more than 8 is .

6. 4 less than 9 is .

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Page 12: C H A PTE R 7 Numbers to 20...2. Fill in the blanks. 3. Write two numbers that are greater than 7., 4. Write two numbers that are less than 6., 5. 3 more than 8 is . 6. 4 less than

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Chapter 7 Lesson 3

Count.Write the numbers in the boxes.Then fi ll in the blanks.

Example

Set A

Set B

Set A has more than Set B.

Set B has fewer than Set B.

7. Set A

Set B

Set A has more than Set B.

Set B has fewer than Set A.

8. Set A

Set B

Set A has more than Set B.

Set B has fewer than Set A.

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9. Set A

Set B

Set has more than Set .

10. Set A

Set B

Set has more than Set .

11. Set A

Set B

Set has fewer than Set .

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Chapter 7 Lesson 3

Count. Write the numbers in the boxes.Then fi ll in the blanks.

Example

Set A

Set B

Set A has more than Set B.

is greater than .

is less than .

12. Set A

Set B

Set A has more than Set B.

is greater than .

is less than .

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Page 15: C H A PTE R 7 Numbers to 20...2. Fill in the blanks. 3. Write two numbers that are greater than 7., 4. Write two numbers that are less than 6., 5. 3 more than 8 is . 6. 4 less than

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13. Set A

Set B

Set A has more than Set B.

is greater than .

is less than .

14. Set A

Set B

Set B has fewer than Set A.

is greater than .

is less than .

15. Set A

Set B

Set A has fewer than Set B.

is greater than .

is less than .

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Chapter 7 Lesson 3

Complete the place-value charts.Compare.Then fi ll in the blanks.

16. Tens OnesTens Ones

is greater than .

is less than .

17. Tens OnesTens Ones

is greater than .

is less than .

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Compare.Use place value to help you.Write the number that is less in the box.

18. 20 or 10

19. 20 or 19

Write the number that is greater in the box.

20. 20 or 17

21. 20 or 13

Write the number that is less in the box.

22. 19 or 11

23. 13 or 18

Write the number that is greater in the box.

24. 14 or 13

25. 16 or 11

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Chapter 7 Lesson 3

Compare the numbers.Use place value to help you.Fill in the blanks.

Example

Compare 20, 14, and 18.

is the greatest number.

is the least number.

Tens Ones Tens Ones

Tens Ones

26. Compare 13, 20, and 19.

is the greatest number.

is the least number.

27. Compare 16, 18, and 13.

is the greatest number.

is the least number.

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Worksheet 4 Making Patterns and Ordering Numbers

Complete the number pattern.Count on.

1. 2, , 4, 5, , , 8

Count back.

2. , 9, 8, , , 5

Complete the number patterns.

Example

12, 13, , , 16, 17, ,

+ 1 + 1 + 1 + 1

3. 15, , , , 19, 20

4. 19, 18, , , ,

5. 12, 14, , , 20

6. 17, , 13, 11, ,

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Chapter 7 Lesson 4

The fi rst three ten frames begin a pattern.Draw in the ten frames to complete the pattern.

7.

Are we adding more ?How many do we add each time?

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Page 21: C H A PTE R 7 Numbers to 20...2. Fill in the blanks. 3. Write two numbers that are greater than 7., 4. Write two numbers that are less than 6., 5. 3 more than 8 is . 6. 4 less than

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The fi rst three ten frames begin a pattern.Draw in the ten frames to complete the pattern.

8.

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Chapter 7 Lesson 4

Count on from the greater number.

9. is 1 more than 3.

10. is 2 more than 4.

Count back from the greater number.

11. is 3 less than 8.

12. is 5 less than 10.

13. Draw to show 3 less than 17.

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Page 23: C H A PTE R 7 Numbers to 20...2. Fill in the blanks. 3. Write two numbers that are greater than 7., 4. Write two numbers that are less than 6., 5. 3 more than 8 is . 6. 4 less than

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14. Draw to show 4 more than 14.

Order the numbers from greatest to least.

15. 14 16 20

, , greatest

Order the numbers from least to greatest.

16. 15 12 18

, , least

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Chapter 7 Lesson 4

Count and order the .

Draw them in the box to make a pattern.

17.

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