问题 解答题
计算下面各题,能简算的要简算.
7×125×8120-20×2+4535×(32+128÷32)
43×36+36×57640÷[4×(16-8)]68×101-68.
答案

(1)7×125×8

=7×(125×8)

=7×1000

=7000;

(2)120-20×2+45

=120-40+45

=80+45

=125;

(3)35×(32+128÷32)

=35×(32+4)

=35×36

=1260;

(4)43×36+36×57

=(43+57)×36

=100×36

=3600;

(5)640÷[4×(16-8)]

=640÷[4×8]

=640÷32

=20;

(6)68×101-68

=68×(101-1)

=68×100

=6800.

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