60*3*10=1200
50*4*10=2000
70*8*10=5600
90*2*10=1800
30*4*10=1200
30*5*10=1500
40*7*10=2800
90*3*10=2700
Это номер в)
Равенства: Неравенства:
72/9 = 40/5 = 8 36/9 = 4 < 25/5 = 5
63/7 = 9 * 1 = 9 4 * 4 = 16 < 2 * 9 = 18
8 * 3 = 6 * 4 = 24 12/3 = 4 > 27/9 = 3
21/3 = 56/8 = 7 63/7 = 9 > 56/8 = 7
16/2 = 32/4 = 8 8 * 5 = 40 > 6 * 4 = 24
1. (40*2)-3=80-3=77
2. (100:2)-31=50-31=19
3. (60:2)+45=30+45=75
4. (100:5)-12=20-12=8
5. (80:2)+51-38=40+51=91-38=53
6. (100:10)+43-38=10+43=53-38=15
7. (60:2)+50-40=30+50=80-40=40
8. (20*3)+(90-62)=60+28=88
9.(20*3)+(92-60)=60+32=92
10. (80:2)+32-56=40+32=72-56=16
11. 50*(80:40)=50*20=1000
12.30*(90:30)=30*20=6000
13. 90:(3*10)=90:30=3
<span> 1/2x-y
просто вставляем значения и все)
а) 1/2 * 2,4 - 0,8 =1,2-0,8= 0,4
б)1/2*(-3,6) - 5 =-1,8-5= - 6,8</span>