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递等式计算,能简便就简便计算(1)(825+175)÷25×4;(2)7.41+5.66+13.59-4.46;(3)125×(32+32)×25;(4)9.14-4.57+0.57;(5)6.5×35+65×6.5;(6)3960÷[145-
题目详情
递等式计算,能简便就简便计算
(1)(825+175)÷25×4;
(2)7.41+5.66+13.59-4.46;
(3)125×(32+32)×25;
(4)9.14-4.57+0.57;
(5)6.5×35+65×6.5;
(6)3960÷[145-(27+88)].
(1)(825+175)÷25×4;
(2)7.41+5.66+13.59-4.46;
(3)125×(32+32)×25;
(4)9.14-4.57+0.57;
(5)6.5×35+65×6.5;
(6)3960÷[145-(27+88)].
▼优质解答
答案和解析
(1)(825+175)÷25×4
=1000÷25×4
=40×4
=160;
(2)7.41+5.66+13.59-4.46
=7.41+13.59+(5.66-4.46)
=21+1.2
=22.2;
(3)125×(32+32)×25
=125×64×25
=125×8×(8×25)
=1000×200
=200000;
(4)9.14-4.57+0.57
=9.14-(4.57-0.57)
=9.14-4
=5.14;
(5)6.5×35+65×6.5
=6.5×(35+65)
=6.5×100
=6500;
(6)3960÷[145-(27+88)]
=3960÷[145-115]
=3960÷30
=132.
=1000÷25×4
=40×4
=160;
(2)7.41+5.66+13.59-4.46
=7.41+13.59+(5.66-4.46)
=21+1.2
=22.2;
(3)125×(32+32)×25
=125×64×25
=125×8×(8×25)
=1000×200
=200000;
(4)9.14-4.57+0.57
=9.14-(4.57-0.57)
=9.14-4
=5.14;
(5)6.5×35+65×6.5
=6.5×(35+65)
=6.5×100
=6500;
(6)3960÷[145-(27+88)]
=3960÷[145-115]
=3960÷30
=132.
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