- (x – 6)8 = 72
72 : 8 = 9
9 + 6 = 15 - 29610 : 9 = 3290
- 2x3x11 և 3x5x13
- 2/5, 3/7, 1/2
2/5=0,4
3/7=0,428…
1/2=0,5
- 8
168= 2x2x2x3x7
128= 2x2x2x2x2x2x2=27
(168,128)= 2x2x2= 8 - 174456 : 9= 19,384
- 0,75; 2/3; 3/5
2/3=0.6667
3/5=0.6 - 6 հատ։ 11; 13; 17; 19; 23; 29
- 81
x : 11= 7 ու 4 մնացորդ
x= 7×11 + 4
x= 81 - 40452
40452 : 6= 6,742 - 64
- 53 x 2 = 106
- 215
x : 25 = 8 մնացորդ 15
x= 8×25 + 15 = 215 - 630
15= 5×3
70= 7x5x2
90=5x3x3x2
[15;70;90] = 7x5x3x3x2 = 630 - պատ․՝15,642
192= 361; 252= 625; 322= 1,024 - մեկ հեկտարի մեջ 10,000 մետր է
- պատ․՝1
17=1x17
86=2×43 կամ 1x86 - 4
11; 13; 17; 19 - 90
99-9=90 - 4
49= 262,144: 10= 26,214.4
- 13
39= 3×13
130= 2x13x5
143= 13×11 - 43
(x+7):5=10
10×5=50-7=43 - 2
18324 : 9= 2036 - 5
268,435,456 – 161,051 = 268,274,405
- 36
18= 3x3x2
12= 2x3x2
2x2x3x3=36 - 15
12+18= 30:2= 15 - 6
-12+18= 6 - 6
12×18=216
63 = 216
- 12
36=2x2x3
60=2x2x3
[36;60]= 2x2x3= 12 - 33x24x5
36=2x2x3x3
60=2x2x3x5 - 25
60-36+1=25 - 60
36/60=3/5 x100 =300/5=60
կամ (36/60)100= 60
- 1.5
27 : 18=1.5 - 18
24 : 4= 6
24 – 6= 18 - 24= 23 x3
18= 2x 32
24x 33= 432 - 7
9/5= 1.8; 8/5= 1.6; 7/5=1.4; 6/5= 1.2; 5/5=1
1.8+1.6+1.4+1.2+1=7
- 144
- 2
72=2x2x2x3 (2 և 3) - 25%
60/48 x 100
5/4 x 100 500/4= 125-100= 25 - 20%
48/60=4/5×100
400/5=80 100-80=20
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