Question

Calculeaza49:7+[49+(48:3+36:9+7:7)]:10
2+2×[2+2:2×(2+2×2)]
9+8×[7+6×(5+4×3)-2×1]-10×10

Answer 1

=7+[49+(16+4+1)]:10= =7+(49+21):10= =7+70:10= =7+7= =14 =2+2x[2+1x(2+4)]= =2+2x(2+1x6)= =2+2x(2+6)= =2+2x8= =2+16= =18 =9+8x[7+6x(5+12)-2]-100= =9+8x(7+6x17-2)-100= =9+8x(7+102-2)-100= =9+8x(109-2)-100= =9+8x107-100= =9+856-100= =865-100= =765

Answer 2

49:7+[49+(48:3+36:9+7:7)]:10=
49:7+[49+(16+4+1)]:10=
49:7+(49+21):10=
49:7+70:10=
7+10=17


2+2x[2+2:2x(2+2x2)]=
2+2x[2+2:2x(2+4)]=
2+2x(2+2:2x6)=
2+2x(2+1x6)=
2+2x(2+6)=
2+2x8=
2+16=18

9+8x[7+6x(5+4x3)-2x1]-10x10=
9+8x[7+6x(5+12)-2x1]-10x10=
9+8x(7+6x17-2x1)-10x10=
9+8x(7+102-2)-10x10=
9+8x107-10x10=
9+856-100=765