Question

dau coroana!!!!!! si 5 puncte !!!

Answer 1

1)a)7000-[(145x28-124)+2986]+235=7000-[(4060-124)+2986]+235=7000-(3936+2986)+235=7000-6922+235=78+235=313

5220:36=145
36
162
144
=180
..180
..===

2356:19=124
19
=45
..38
...=76
.....76
.....==

3995:17=235
34
=59
..51
..=85
....85
....==


... 145×
.... 28
--------
. 1160
. 290
. 4060

B)[(458+142):10]+11036-11086=(600:10)+11036-11086=60+11036-11086= 11096-11086=10

27022:59=458
236
=342
..295
..=472
....472
....===

4544:32=142
32
134
128
==64
....64
.....==

... 178×
..... 62
----------
... 356
1068
11036


C)2016-[(19584:64+694):(10858-10833)] +24=2016-[(306+694):25)]+24=2016-(1000:25)+24=2016-40+24=1976+24=2000

....128x
....153
---------
...384
.640
128
19584

10410:15=694
. 90
=141
..135
..==60
......60
......==

...471x
.....23
--------
...1413
..942
10833

1416:59=24
118
=236
..236
..===

19584:64=306
192
==38
.......0
......384
...... 384
.......===

1000:25=40
100
===0
.......0
.......=



2)1500-[820-16x(125xa-150):80]=700
-[820-16x(125xa-150):80]=700-1500
-[820-16x(125xa-150):80]= - 800
820-16x(125xa-150):80=800
-16x(125xa-150):80=800-820
-16x(125xa-150):80= - 20
16x(125xa-150):80=20
16x(125xa-150)=20x80
125 xa-150=1600:16
125xa=100+150
A=250:125
A=2

250:125=2
250
===
Verificare
1500-[820-16x(125x2-150):80]=700
1500-[820-16x(250-150):80]=700
1500-(820-16x100:80)=700
1500-(820-1600:80)=700
1500-(820-20)=700
1500-800=700
700=700