简便计算:36+59+41+54 23×7+23×3 1462-369-631 1923-456-544 265×99+265 (250+25)×40 125
简便计算:36+59+41+5423×7+23×31462-369-6311923-456-544265×99+265(250+25)×40125×25×329999×8...
简便计算:36+59+41+54 23×7+23×3 1462-369-631 1923-456-544 265×99+265 (250+25)×40 125×25×32 9999×8+9999×3-9999
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(1)36+59+41+54
=(36+54)+(59+41)
=90+100
=190
(2)23×7+23×3
=23×(7+3)
=23×10
=230
(3)1462-369-631
=1462-(369+631)
=1462-1000
=462
(4)1923-456-544
=1923-(456+544)
=1923-1000
=923
(5)265×99+265
=265×(99+1)
=265×100
=26500
(6)(250+25)×40
=250×40+25×40
=10000+1000
=11000
(7)125×25×32
=125×25×4×8
=125×8×(25×4)
=1000×100
=100000
(8)9999×8+9999×3-9999
=9999×(8+3-1)
=9999×10
=99990
=(36+54)+(59+41)
=90+100
=190
(2)23×7+23×3
=23×(7+3)
=23×10
=230
(3)1462-369-631
=1462-(369+631)
=1462-1000
=462
(4)1923-456-544
=1923-(456+544)
=1923-1000
=923
(5)265×99+265
=265×(99+1)
=265×100
=26500
(6)(250+25)×40
=250×40+25×40
=10000+1000
=11000
(7)125×25×32
=125×25×4×8
=125×8×(25×4)
=1000×100
=100000
(8)9999×8+9999×3-9999
=9999×(8+3-1)
=9999×10
=99990
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