Question

Calculeaza, respectand ordinea efectuarii operatiilor: a) 2÷2+2×2-2=....3+3×3+3÷3-3=....4×4-4÷4+4=....b) 5-5÷5+5×5=....6÷6+6×6-6=....7-7÷7+7×7=....c) 8-8÷8+8×8=....9÷9+9×9-9=....10-10÷10+10×10=....

Answer 1

a) 2÷2+2×2-2=1+4-2=3
3+3×3+3÷3-3=3+9+1-3=10
4×4-4÷4+4=16-1+4=19

b) 5-5÷5+5×5=5-1+25=29
6÷6+6×6-6=1+36-6=31
7-7÷7+7×7=7-1+49=55

c) 8-8÷8+8×8=8-1+64=71
9÷9+9×9-9=1+81-9=73
10-10÷10+10×10=10-1+100=109

Answer 2

2:2+2*2-2=
=1+4-2
=5-2
=3

3+3*3+3:3-3=
=3+9+1-3
=12+1-3
=13-3
=10

4*4-4:4+4=
=16-1+4
=15+4
=19

5-5:5+5*5=
=5-1+25
=4+25
=29

6:6+6*6-6=
=1+36-6
=37-6
=31

7-7:7+7*7=
=7-1+49
=6+49
=55

8-8:8+8*8=
=8-1+64
=7+64
=71

9:9+9*9-9
=1+81-9
=82-9
=73

10-10:10+10*10=
=10-1+100
=9+100
=109