Question

8x7+8x3+8+2

Answer 1

8x7+8x3+8+2

=8x7+8x3+8x1+2

=8x(7+3+1)+2

=8x11+2

=88+2

=90

Answer 2

90 k mik nha

Answer 3

=8 x (7+3+2)

= 8 x 12

= 96

Answer 4

90 nha bạn!

K mình nha!

Answer 5

\(8x7+8x3+8+2\)

\(=56+24+8+2\)

\(=80+8+2\)

\(=88+2\)

\(=90\)

Answer 6

Ta giải bài toán như sau: 8.(7+3)+8+2 =8.10+10 =80+10 =90 Vậy 8.7+8.3+8+2=90

Answer 7

  8x7 + 8x3 + 8 + 2

= 56 + 24 + 10

=  80 + 10 

= 90

Answer 8

      \(8\cdot7+8\cdot3+8+2.\)

\(=8\cdot7+8\cdot3+8\cdot1+2.\)

\(=8\cdot\left(7+3+1\right)+2.\)

\(=8\cdot11+2.\)

\(=88+2.\)

\(=90.\)

Answer 9

8 x 7 + 8 x 3 + 8 + 2 = 8 x 7 + 8 x 3 + 8 x 1 + 2

                                 =  8 x ( 7 + 3 + 1) + 2

                                 =  8 x     11  + 2

                                 =     88 + 2

                                  =       90