问题
解答题
比一比,算一算.
(75+15)×28-14______,75+15×28-14______;
1500÷25-(18+8)______,1500÷(25-18+8)______;
(28+32)÷(4-3)______,28+(32÷4-3)______.
答案
(1)(75+15)×28-14,
=90×28-14,
=2520-14,
=2506;
(2)75+15×28-14,
=75+420-14,
=481;
(3)1500÷25-(18+8),
=1500÷25-26,
=60-26,
=34;
(4)1500÷(25-18+8),
=1500÷15,
=100;
(5)(28+32)÷(4-3),
=60÷1,
=60;
(6)28+(32÷4-3),
=28+(8-3),
=28+5,
=33.