30 . 10 , 5 . ?
80-4= 95 - (37+5)=
35+9= 77 - (17+30)=
64+6= 85 - (5+50)=
1 + 4 =...
- 20 =... .
7 , - 3 .
. .
54 + ( - ), =14, =6
6 (17 )
3 9 , 5 .
?
2*8+49= (55-37):2=
2*7+25= (62-48):2=
(9+9):3= 8*(9:3)=
+ :2, =8, =34
9 , 3 . ?
2 , 5. .
6. 3*5 =, 2*9 =.
9 (18 )
27 , -36 , 9 , . ?
64:8*2:4= 20:5+(52-42)=
25+32:4-3= 30:6*10=
70-5*7+19= 94-40:5+11=
27:9*(40:5)= 20+5*5=
48:*4+, =6, =8
4. г
63:=9 - 43=25
12:3= 36:6 = 1 25 + 37 = 4 5:5 = 54+5 4=
г 24 6 3 .
45 5 5.
21 7 4 .
4 , 20 .
3
1 (24 )
18 , - 3 . ?
49+(27+1) 54:6-72:9 8468-2= 5*7+8*6= 6*9-50= 1-28= 18:2+7= 26+35=
3.г
96-=72 64:=8
4.
72 _ 3 16._1 41+18 _70
6 .
84 . 6 , 45 . ?
1 (24 )
45, 5 . ?
|
|
27+(46+3) = 81:9- 54:6=
72-38-4= 7*6+9*3=
8*9-70= 1- 67=
18:3+8= 46 +35=
3.г
*7= 28 -47=32
4.
1 _4 2 _24 61 +17 _90
4 3 .
56 . 8 , 24 . ?
4
2 (28 )
. ϳ, .
6832, 7504, 783, 7142, 6341, 63141.
.
60573+31258 462325-18986
.
327*7+ (4383-599): 8
4.
34 560 _ 45 26 35 _ 2635
4 276. 2 . ?
, 7 6 4 8, 17 9.
4,6,0.
5 (21 )
6 114 . 8 , 2 ?
4078*8+896:7
187* (334674-362)
840*405:270
600675:75+201*(400100-397964)
3.г
574+=720
+129347=601052
5 970+ 3 640
10 3 40
14 590+680
³ 324 6 . 3 . ?
, 9 5 5 7, 21 4.
4 7 .
8 (26 )
3 1 , 10 , 6 1 , 1 . , 1 ?
50103-(35073:9+3794)
20* (14057-27054:6)
213462:3+725832:4
536072:8-28362
600000-42070*7
4 40+8 990 9 480
6 350 2 480 + 5 680
. 8 , 4 . .
60 , 24 . ¾ , - . .
45 25 . 1800 . , ?
|
|
1/4 = */8 3/6 = */8 6/9 = */3 1/3 = */6
- 3
: ij (48:3). .
: 48: 3, , , , - , , ; , ; .
: .
: , .
ճ :
1.
2.
2.1.
2.2. .
7+8*3-2+17:6+71:9-5 *4+ 30:2+ 5:4 = 7
22:2, 42:2, 33:3, 36:3, 44:4, 82:2 55:1, 66:6, 77:0, 88:8, 99:1.
.
7; 21; 14; 35; 48; 49; 56.
. (7 , .)
? (48 7.)
, 7. (7; 14; 21; 35; 49; 56).
48? ( 6)
48 . (48 = 40 + 8)
48 , 4? (48 = 40 + 8; 48 = 36 + 12; 48 = 28 + 20; 48 = 24 + 24)
4 .
(36 + 12): 4 = 36: 4 + 12: 4 = 9 + 3 = 12
? (48)
(28 + 20): 4 = 28: 4 + 20: 4 = 7 + 5 = 12
? (48)
3.
3.1.
, .
3.2.
72 , 4.
(60 12 40 32)
60:4=15, 12:4=3, 15+3=18, 40:4=10, 32:4=8, 10+8=18
3.3.
770, .120
- . .
771
- .
3.4.
51:3= 52:2= 65:5= 98:7= 96:8= 75:5= 57:3= 72:4= 96:6=
3.5. (. 121-122)
772
, , .
(28 + 32): 4 = 15 (.)
³: 15 .
773
ϳ .
k
?, 3 <
k + k: , k = 45, 45 + 45: 3 = 60 ()
774
.
5 = 55
= 55: 5
= 11
³: 11.
1) : 18 14 , - . . (16 )
2) : .
29
31
4.