| 下面各题怎样简便就怎样算. (1)125×7×8 (2)32+26+74+168 (3)48×201-48 (4)99×38+38 (5)25×44 (6)63×25+25×37. |
| (1)125×7×8 =125×8×7 =1000×7 =7000; (2)32+26+74+168 =32+168+(26+74) =200+100 =300; (3)48×201-48 =48×(201-1) =48×200 =9600; (4)99×38+38 =38×(99+1) =38×100 =3800; (5)25×44 =25×4×11 =100×11 =1100; (6)63×25+25×37 =25×(63+27) =25×100 =2500. |
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