Tính thuận tiện:76 + 26 + 2443 x 54 + 46 x 43

Đáp án:
${ 76 + 26 + 24 }$
${= ( 76 + 24 ) + 26}$
${= 100 + 26}$
${= 126}$
   
${43 × 54 + 46 × 43}$
${= 43 × ( 54 + 46 )}$
${= 43 × 100}$
${= 4300}$

76 + 26 + 24

= (76+24)+26

= 100+26

=126
43 x 54 + 46 x 43

= 43 x (54+46)

= 43x 100

= 4300

76+26+24=(76+24)+26=100+26=126

43x54+46x43=43x(54+46)=43x100=4300