Question

calculatii, 4x(9-5)=, 32:8x6:3:4x9=, 8x9 -18:3+5x9-4x7=, 12+6:(3+9:3)=, 100-(24+24:4+5x3)=, 63-a=9, 8xa=32, 56-7xa=14, 58+ax6=94, 7xa +49=70

Answer 1

Răspuns:

1.16

2.18

3.83

4.13

5.55

Explicație pas cu pas:

1. 4•(9-5)=

4•4=16

2. 32:8•6:3:4•9=

4•6:3:4•9=

24:3:4•9=

8:4•9=

2•9=18

3. 8•9-18:3+5•9-4•7=

72-6+45-28=

66+45-28=

111-28=83

4. 12+6:(3+9:3)=

12+6:(3+3) =

12+6:6=

12+1=13

5. 100-(24+24:4+5•3) =

100-(24+6+15) =

100-(30+15) =

100-45=55