Question

VA ROG E CAT SE POATE DE URGENT!!!!!!!​

Answer 1

Explicație pas cu pas:

1. La primul nu stiu, dar ma mai gandesc

2. 28:7=4<27:3=9

35:5=7>20:10=2

32:8=4<24:4=6

42:7=6<63:9=7

72:8=9>36:6=6

32:4=8=40:5=8

3. 8×2=16

8×4=32

4×2=8

4×4=16

12×2=24

12×4=48

16×2=32

16×4=64

4.triplul lui 3 este 9

a:72=9

a=72×9

a=648

5. 7×8+(87-79):4=

56+8:4=

56+2=

58

24+5×(25:5:5-1)+25=

24+5×(1-1)+25=

24+5×0+25=

24+0+25=

49

3×2:6×[20+(54:9:2-2)]-20=

6:6×[20+(6:2-2)]-20=

6:6×[20+(2-2)-20

6:6×(20+0-20)=

1×20-20=

20-20

0

[(5×4+3×4):(9×8-8×8)]:4=

[(20+12):(72-64)]:4=

(32:8):4=

4:4=

1