Question

Thuc hien phep tinh bang cach hop li ( neu co the )

a / 81 + 243 + 19

b / ( 67 + 129 ) + ( 133 - 29 )

c / 75 × 16 + 84 × 75 - 500

d / 4 × 5² - 16 : 2³ 2020⁰

Answer 1

a / 81+19+243

= 100+243

=343

b/ = 67 +129+133-29

= 67+133+129-29

= 200-100

= 100

c / = 75 x ( 16+84)-500

= 75 x 100-500

= 7500-500

= 7000

Answer 2

d / = 100 - 2+1

= 98+1

= 99

Answer 3

a / 81+19+243

= 100+243

=343

b/ = 67 +129+133-29

= 67+133+129-29

= 200-100

= 100

c / = 75 x ( 16+84)-500

= 75 x 100-500

= 7500-500

= 7000