用递等式计算(能简便的要简便计算)48×49+51 &nbs...

2025-05-10 08:01:15
推荐回答(1个)
回答1:

(1)48×49+51  
=2352+51
=2403;

(2)104×24÷52
=2496÷52
=48;

(3)27×73+27×27
=27×(73+27)
=27×100
=2700;

(4)696-235-(286+165)
=(696-286)-(235+165)
=410-400
=10;

(5)6240-9180÷34
=6240-270
=5970;

(6)(633+28)×(78-29)
=661×49
=32389.