怎样简便就怎样算;
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| (1)168-52-48, =168-(52+48), =168-100, =68; (2)125×88, =125×8×11, =1000×11, =11000; (3)1300÷25÷4, =1300÷(25×4), =1300÷100, =13; (4)688-534+112, =688+112-534, =800-534, =266; (5)8×(29×l25), =8×125×29, =1000×29, =29000; (6)156×l0l-156, =156×(101-1), =156×100, =15600; (7)3000÷125÷8, =3000÷(125×8), =3000÷1000, =3; (8)58×72+28×58, =58×(72+28), =58×100, =5800; (9)688-(534-112), =688-422, =266. |
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