3 Subtraction Withi Nthe Range of 10 000

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    SUBTRACTION

    WITHIN THE RANGE OF

    10 000

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    Little Friend

    The Little Friend of 1is 4.The Little Friend of 2is 3.

    The Little Friend of 3is 2.

    The Little Friend of 4is 1.

    5

    1

    2

    4

    4

    23

    3

    1

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    9846 - 4835 =

    9846, up 9846

    Minus 4835, down 4835Equals 5011.

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    7674 - 521 - 6152 =7672, up 7674

    Minus 521, down 521

    Minus 6152, down 6152

    Equals 1001.

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    6547 - 4313 =

    6547, up 6547

    Minus 4313, down 4313Equals 2234.

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    7853

    142

    3410 =

    7853, up 7853

    Minus 142, down 142Minus 3410, down 3410

    Equals 4301.

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    5766 - 42 =

    5766, up 5766

    Minus 42, down 42Equals 5724.

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    7769

    243 - 3412 =

    7769, up 7769

    Minus 243, down 243Minus 3412, down 3412

    Equals 4114.

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    Step Up the Little Friend of 1, 2, 3 and 4

    Step Down 5

    1

    2

    Example :

    1) 6573 - 1542 =

    2) 8976 - 1132 =3) 9593 - 4251 =

    4) 5857 - 2413 =

    1

    2

    SUMMARY:

    Break Five Subtraction

    5031

    78445342

    3444

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    Big Friend

    The big friend of 1is 9.

    The big friend of 2is 8.

    The big friend of 3is 7.

    The big friend of 4is 6.

    The big friend of 5is 5.

    The big friend of 6is 4.The big friend of 7is 3.

    The big friend of 8is 2.

    The big friend of 9is 1.

    10

    1

    2

    4

    9

    7

    5 5

    3

    8

    6

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    Little Friend

    The Little Friend of 1is 4.The Little Friend of 2is 3.

    The Little Friend of 3is 2.

    The Little Friend of 4is 1.

    5

    1

    2

    4

    4

    23

    3

    1

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    5318 - 52 =

    5318, up 5318

    Minus 52, down 52Equals 5266.

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    4524 - 285 - 47 =

    4524, up 4524

    Minus 285, down 285

    Minus 47, down 47

    Equals 4192.

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    6145 - 651 - 59 =

    6145, up 6145

    Minus 651, down 651

    Minus 59, down 59

    Equals 5435.

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    7382 1547 =

    7382, up 7382

    Minus 1547, down 1547Equals 5835.

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    2536 - 85 - 724 =

    2536, up 2536

    Minus 85, down 85

    Minus 724, down 724

    Equals 1727.

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    Summary for Subtraction With Removing

    Type 1

    21

    Step Remove 1

    Step Up the Big Friend of 6, 7, 8 and 92

    Example :

    15 - 6 =

    21 - 7 =40 - 8 =

    166 9 =

    1

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    2

    1

    Step Remove 1

    Step Up the Big Friend of 5

    1

    2

    Example :

    10 5 =

    20 5 =

    30

    15 =

    90 75 =

    Type 2

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    Type 3

    2

    1

    Step Remove1

    Step Up the Big Friend of 1 , 2 , 3 or 4

    1

    2

    Example :

    10 1 =

    71

    2 =580 3 =

    924 40 =

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    Summary for Integration of Subtraction

    31

    Step Remove 1

    Step Up 5

    Step Down the Little Friend

    1

    2

    2

    3

    Sum BigFriend LittleFriend

    11 6 4 1

    33 7 3 2

    832 80 2 3

    940 - 90 1 4

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    Practice 1

    1 2 3 4 5 69763

    -7562

    6946

    - 214

    2476

    - 132

    8797

    -4266

    2461

    - 330

    3206

    -1204

    2201 6732 2344 4531 2131 2002

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    Practice 2

    1 2 3 4 5 69999

    -8878

    3978

    -2664

    9846

    -3721

    3274

    -1123

    6755

    -2411

    8556

    -3542

    1121 1314 6125 2151 4344 5014

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    Practice 3

    1 2 3 4 5 68856

    - 24

    - 231

    7839

    - 324

    - 405

    9764

    -6121

    -643

    2869

    - 37

    -2421

    1876

    - 442

    -1434

    4756

    -2142

    -213

    8601 7110 3000 411 0 2401

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    Practice 4

    1 2 3 4 5 66457

    -1322

    - 21

    7865

    - 45

    - 410

    9988

    - 317

    -5431

    2595

    -1372

    - 122

    4762

    -531

    -1210

    1856

    -321

    -1423

    5114 7410 4240 1101 3021 112

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    Practice 5

    1 2 3 4 5 63587

    - 53

    -1414

    6715

    -4201

    -1113

    9453

    - 21

    -7322

    7937

    -5213

    - 24

    2569

    - 43

    -1423

    8783

    -142

    - 620

    2120 1401 2110 2700 1103 8021

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    Practice 6

    1. 6863 4432 =

    2. 5610

    1500 =

    3. 4798 1367 =

    4. 1792 1772 =

    5. 7358

    6244 =

    6. 3674 2222 =

    7. 2786 2631 =

    8. 7994

    4542 =

    9. 4826 724 =

    10. 2765 444 =

    2431

    4110

    3431

    20

    1114

    1452

    155

    3452

    4102

    2321

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    Practice 7

    1. 5587 22 164 =

    2. 6738

    413

    1001 =

    3. 5979 4312 24 =

    4. 1469 214 115 =

    5. 2942

    642

    1200 =

    6. 4857 1421 34 =

    7. 5486 74 1311 =

    8. 7786

    321

    141 =

    9. 5765 1421 32 =

    10. 2679 63 202 =

    5401

    5324

    1643

    1140

    1100

    3402

    4101

    7324

    4312

    2414

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    Practice 8

    1 2 3 4 5 6

    3597

    -28

    4165

    -147

    3891

    -729

    9281

    -756

    5463

    -1958

    7611

    -746

    3569 4018 3162 8525 3505 6865

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    Practice 9

    1 2 3 4 5 6

    1526

    -9

    3692

    -37

    6301

    -341

    9648

    -552

    8951

    -6866

    6473

    -4958

    1517 3655 5960 9096 2085 1515

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    Practice 10

    1 2 3 4 5 6

    6268

    -365

    -568

    5001

    -457

    -287

    8222

    -317

    -1686

    9214

    -18

    -547

    4335

    -620

    -1897

    4103

    -78

    -272

    5335 4257 6219 8649 1818 3753

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    Practice 11

    1 2 3 4 5 6

    2623

    -75

    -1735

    3412

    -264

    -634

    2268

    -19

    -576

    5119

    -826

    -785

    4004

    -265

    -1278

    6075

    -1247

    -2964

    813 2514 1673 3508 2461 1864

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    Practice 12

    1 2 3 4 5 6

    2467

    -736

    -58

    5146

    -582

    -29

    3832

    -344

    -2759

    9112

    -68

    -4599

    4530

    -268

    -197

    7121

    -3866

    -2284

    1673 4535 729 4445 4065 971

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    Practice 13

    1. 3622 168 =

    2. 5834

    2267 =

    3. 5284 796 =

    4. 2223 338 =

    5. 6754

    1089 =

    6. 7722 3867 =

    7. 8217 48 =

    8. 4502

    316 =

    9. 9900 8936 =

    10. 10 000 5 =

    3454

    3567

    4488

    1885

    5665

    3855

    8169

    4186

    964

    9995

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    Practice 14

    1. 3456 1248 760 =

    2. 4785

    976

    1748 =

    3. 9827 3903 1879 =

    4. 9101 49 7077 =

    5. 7314

    869

    996 =

    6. 5050 808 707 =

    7. 6161 606 979 =

    8. 5263

    1738

    76 =

    9. 4444 999 1990 =

    10. 7480 2935 3097 =

    1448

    2061

    4045

    1975

    5449

    3535

    4576

    3449

    1455

    1448

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    Mental Calculation

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    1 2 3 4 5 6

    9483-241

    7267- 153

    4871- 21

    3945- 433

    - 1