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Растављање бројева на сабирке PowerPoint PPT Presentation


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Растављање бројева на сабирке. Већ сте научили да бројеве можемо записити у облику збира чији сабирци су јединице, десетице, стотине. 24 = 20 + 4. 213 = 200 + 10 + 3.

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Растављање бројева на сабирке

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7011090


7011090

, , .

24 = 20 + 4

213 = 200 + 10 + 3

: , , , , , ...

5 121 = 5000 + 100 + 20 + 1


7011090

23 000 = 20 000 + 3 000

723 000 = 700 000 + 20 00 + 3 000

18 000 = ________________, 618 000 = ________________ 208 000 = _______________, 901 000 = ________________


7011090

!

18 000 = 10 000 + 8 000

618 000 = 600 000 + 10 000 + 8 000

208 000 = 200 000 + 8 000

901 000 = 900 000 + 1 000


7011090

!

359 816 = 359 000 + 816 =

300 000 + 50 000 + 9 000 + 800 + 10 + 6

104 259 = ____________, 104 104 = ______________

600 044 = ____________, 600 004 = _______________


7011090

104 259 = 104 000 + 259 =

100 000 + 4 000 + 200 + 50 + 9

104 104 = 104 000 + 104

100 000 + 4 000 + 100 + 4

600 044 = 600 000 + 44 =

600 000 + 40 + 4

600 004 = 600 000 + 4

!


7011090

, . :

:1, 2, 3, 4, 5, 6, 7, 8, 9;

:10, 20, 30, 40, 50, 60, 70, 80, 90;

: 100, 200, 300, 400, 500, 600, 700, 800, 900;

: 1 000, 2 000, ... , 9 000;

: 10 000, 20 000, ... , 90 000;

: 100 000, 200 000, ... , 900 000.

!

?


7011090

:1, 2, 3, 4, 5, 6, 7, 8, 9;

:10, 20, 30, 40, 50, 60, 70, 80, 90;

: 100, 200, 300, 400, 500, 600, 700, 800, 900;

()

: 1 000, 2 000, ... , 9 000;

: 10 000, 20 000, ... , 90 000;

: 100 000, 200 000, ... , 900 000.

()

!


7011090

.

!

1

10

100

1 000

10 000

100 000

1 000 000

324 212


7011090

3 423 .

:

3423 =

3 1000 +

4 100 +

2 10 +

3


7011090

5 220 . ...

2 10

= 5 220 .

5 1000 +

2 100 +


7011090

?

20 = 2 10

200 = 2 100

5000 = 5 1000


7011090

...

3 402 = 3 1000 + 4 100 + 2

, , !

?

2 1, 2 ?


7011090

10

, 10

2 102 +

2 10

= 5 220

5 103 +


7011090

!

, , ...

285 473 = 200 000 + 80 000 + 5 000 + 400 + 70 + 3

= 2100 000 + 810 000 + 51 000 + 4100 + 710 + 3

, 10

= 2 105 + 8 104 + 5 103 + 4 102 + 710 + 3


7011090

!

.

1 213 .

3 231 .


7011090

!

, , . ?

: !

  • 120 010

  • 204 246

  • 51 012

  • 8 363


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