能简便计算的请用简便计算.156×7-624 &...
能简便计算的请用简便计算.156×7-62424×6+75×6+699×64+64123-68+32287×5+96990÷31844×253200÷4÷25....
能简便计算的请用简便计算.156×7-624 24×6+75×6+6 99×64+64 123-68+32 287×5+96990÷318 44×25 3200÷4÷25.
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(1)156×7-624
=1092-624
=468;
(2)24×6+75×6+6
=(24+75+1)×6
=100×6
=600;
(3)99×64+64
=(99+1)×64
=100×64
=6400;
(4)123-68+32
=55+32
=87;
(5)287×5+96990÷318
=1435+305
=1740;
(6)44×25
=4×11×25
=4×25×11
=100×11
=1100;
(7)3200÷4÷25
=3200÷(4×25)
=3200÷100
=32.
=1092-624
=468;
(2)24×6+75×6+6
=(24+75+1)×6
=100×6
=600;
(3)99×64+64
=(99+1)×64
=100×64
=6400;
(4)123-68+32
=55+32
=87;
(5)287×5+96990÷318
=1435+305
=1740;
(6)44×25
=4×11×25
=4×25×11
=100×11
=1100;
(7)3200÷4÷25
=3200÷(4×25)
=3200÷100
=32.
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