Question

a) 172+172×2+172×3+172×4

=

=

=

b) 152+592-92-52-81+381

Answer 1

a)1720

b)900

Answer 2

 

a) 172+172×2+172×3+172×4

=172x1+172x2+172x3+172x4

=172x(1+2+3+4)

=172x10

=1720

 

b) 152+592-92-52-81+381

=(152-52)+(592-92)+(381-81)

=100+500+300

=900

 

Answer 3

tự làm đi bé ơii

Answer 4

a) 172+172×2+172×3+172×4

=172x1+172x2+172x3+172x4

=172x(1+2+3+4)

=172x10

=1720

b) 152+592-92-52-81+381

=(152-52)+(592-92)+(381-81)

=100+500+300

=900

Tik cho mình nha

Answer 5

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Answer 6

a) 172 + 172 × 2 + 172 × 3 +172 × 4

= 172 x 1+172 x 2 +172 x 3+172 x 4

= 172 x ( 1+ 2 + 3 + 4 )

= 172 x 10

= 1720

b) 152 + 592 - 92 - 52 - 81 + 381

= ( 152 - 52 ) + ( 592 - 92 ) + ( 381 - 81 )

= 100 + 500 + 300

= 900