问题
解答题
用简便方法计算.
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答案
(1)4600÷25÷4
=4600÷(25×4)
=4600÷100
=46;
(2)589-256-44
=589-(256+44)
=589-300
=289;
(3)76+25+24+175
=(76++24)+(25+175)
=100+200
=300;
(4)44×25
=11×(4×25)
=11×100
=1100;
(5)8×(29×l25)
=(8×l25)×29
=1000×29
=29000;
(6)196×l0l-196
=196×(l0l-1)
=196×100
=19600.