, . ֳ , . , . , .
䳿 100, ; 1000 , 100.
, 100.
1000 :
200 + 700 = 2 . + 7 . = 9. = 900 800 300 = 8. 3 . = 5 . = 500
, :
60 + 90 = 6. + 9. = 15.=150 120 30 = 12. 3. = 9. = 900
:
520 + 340 = 500 + 20 + 300 + 40 = 800 + 60 = 860
500+20 300+40
470 - 320 = 400 + 70 300 20 = 100 + 50 = 150
400+70 300+20
: , .
, :
430 + 500 = 400 + 30 + 500 = 900 + 30 = 930
400+30
430 + 50 = 400 + 30 + 50 = 400 + 80 = 480
400+30
760 400 = 700 + 60 400 + 300 + 60 = 760
700+60
760 40 = 700 + 60 40 = 700 + 20 = 720
700+60
:
1 :
560 + 230 = = 500 + 60 + 200 + 30 = 700 + 90 = 790
500+60 200+30
2 :
560 + 230 = 560 + 200 + 30 = 760 + 30 = 790
200+30
3 :
560 + 230 = 56. + 23. = 79. = 790
4 :
560 + 230 = 600 + 230 40 = 830 40 = 790
1 :
870 - 260 = 800 + 70 200 60 = 600 + 10 = 610
800+70 200+60
2 :
870 - 260 = 870 200 60 = 670 60 = 610
200+60
3 :
870 260 = 87. 26. = 61. = 610
4 :
870 260 = 870 300 + 40 = 570 + 40 = 610
, :
|
|
230 + 70 = 200 + 30 + 70 = 200 + 100 = 300
200+30
:
200 60 = 100 + 100 60 = 100 + 40 = 140
100+100
:
380 + 590 = 300 + 80 + 500 + 90 = 800 + 170 = 970
300+80 500+90
:
1 :
420 70 = 300 + 120 70 = 300 + 50 = 350
400+20
2 :
420 70 = 420 20 50 = 400 50 = 350
20+50
ϳ :
650 290 = 650 200 90 = 450 90 = 360
200+90
600 270 = 600 200 70 = 400 70 = 330
200+70
, , . , 100.