怎样简便怎样算.
32×25; 55×102; 48×24+24×52.
第1个回答 2019-07-23
(1)32×25
=(8×4)×25
=8×(4×25)
=8×100
=800;
(2)55×102
=55×(100+2)
=55×100+55×2
=5500+110
=5610;
(3)48×24+24×52
=(48+52)×24
=100×24
=2400.
=(8×4)×25
=8×(4×25)
=8×100
=800;
(2)55×102
=55×(100+2)
=55×100+55×2
=5500+110
=5610;
(3)48×24+24×52
=(48+52)×24
=100×24
=2400.