: 1) 10, 100 ;
2) .
3) ;
4) ;
5)
1.
2.
3.
4.
() 6, 7, 2, 5*.
2. : 9312 .?. , 9312 10 9312 . .
9312 . = 93 120; 237 . = 23 700;
435 . = 435 000.
5*. . , 3. 6 (3 + 3 = 6), 9 (6 + 3 = 9).
 |
6. .
? ( .) , ? ( 10, 100, 1000 .)
7. . .
5.
() 1, 3, 4, 8, 9.
1. , . . :
100 8324 = 8324 100 = 832 400.
4.
1) 5 8 70 170 = 2 7 ;
2 7 = 2700 .
2) 2700 : 5 = 540 (.) .
8.
1 2 = 100 2;
60 100 = 6000 (2); 25 100 = 2500 (2);
39 100 * 3900 (2); 7 100 = 700 (2);
700 + 20 = 7020 (2).
9. :
345 287 > 387 ∙ 245 985 358 < 385 957
99 015 > 94 815; 352 630 < 368 445;
1000 100 < 999 ∙ 102
100 000 < 101898.
6. () 10, 11.
10. 18 .
7.
8.
71
. .
: 1) , ;
2) .
3) ;
4) ;
5)
1.
2.
3.
4.
() 3, 4*, 6.
4*. . (22: 2 + 2) ∙ 2 = 26
6. , :
1) ; 2) .
|
|
|
 |
5.
() 1, 2, 5.
2.
1) 1240 2 = 2480 () ;
2) 1240: 4 = 310 () ;
3) 2480: 5 = 496 () ;
4) 496 + 310 = 806 ().
) 7, 8.
7.
1) 2332 3 = 6996 (.) ;
2) 2332 + 6996 = 9328 (.) ;
3) 2332 + 6996 + 9328 = 9328 + 9328 = 18 656 (.) .
2332 8 = 18 656 (.)
7.
8.
72
