Another Way to Subtract - MHSchool

numbers to subtract. Another Way to Subtract If you take apart a number to make a 10 it is easier to subtract. 13-2 A C ... Subtract. 1. 38...

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Multi-Part Lesson

Name

PART

A

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13-2 C

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Another Way to Subtract Get Ready If you take apart a number to make a 10 it is easier to subtract.

Main Idea I will take apart numbers to subtract.

Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

Check Use Subtract.

and

1. 38 - 27

C13-009A-112051.ai C13-009A-112051.ai

38 -

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Why does it help to break a number apart before subtracting?

Chapter 13 • Lesson 2C

571_574_CH13_L2C_112051.indd 571

2. 64 - 23

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3.

. Take apart the number.

five hundred seventy-one

571

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Practice Use Subtract. 4. 36 - 14

and

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. Take apart the number.

C13-009A-112051.ai C13-009A-112051.ai

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75 =

6. 45 - 24

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75 =

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9. 98 - 27

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10. 28 - 16

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572

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Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

98 -

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=

7. 75 - 53

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26 -

5. 75 - 21

five hundred seventy-two

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Name Use Subtract. 11. 47 - 24

and

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. Take apart the numbers.

C13-009A-112051.ai C13-009A-112051.ai

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68 -

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79 -

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15. 36 - 36

Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

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14. 79 - 45

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36 -

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13. 29 - 14

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12. 68 - 47

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16. 37 - 15

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17. 59 - 38

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Chapter 13 • Lesson 2C

571_574_CH13_L2C_112051.indd 573

= five hundred seventy-three

573

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Solve. 18. There were 96 leaves on the tree. 63 leaves fell off of the tree. How many leaves are left on the tree? -

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leaves

19. The bowl held 89 pieces of popcorn. Sid ate 48 pieces. How many pieces of popcorn are left? -

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20.

pieces of popcorn

How do you take apart a two-digit number?

574

five hundred seventy-four

571_574_CH13_L2C_112051.indd 574

Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

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Math at Home Activity: Show your child a number. Have him or her draw the number, in tens and ones. Show your child another number. Have him or her break apart that number into tens and ones. Have your child subtract the tens and then the ones.

5/20/09 5:25:45 PM