Download - 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
- 12
2473-1111
- 52
8354-251
- 101
Mental calculation 1
9242 7114 4850 3500 1310 8002
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Mental calculation 2
1 2 3 4 5 6
4162
-689
7245
-491
3344
-188
6027
-475
-687
5900
-457
-2998
8345
-3792
-2007
3473 6754 3156 4865 2445 2546