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.

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