问题 解答题
能简算的要简算
168-52-48
125×88
382×101-382156×l0l-156
164-83-6425×73+25×27
360÷4544×25
76000÷8÷12599×27+27
125×563874-(680+874)
99×4537+125+63+175
99×56+56-462688-534+112.
答案

(1)168-52-48

=168-(52+48)

=168-100

=68;

(2)125×88

=125×8×11

=1000×11

=11000;

(3)382×101-382

=383×(101-1)

=382×100

=38200;

(4)156×l0l-156

=156×(101-1)

=156×100

=15600;

(5)164-83-64

=164-64-83

=100-83

=17;

(6)25×73+25×27

=25×(73+27)

=25×100

=2500;

(7)360÷45

=360÷(9×5)

=360÷9÷5

=40÷5

=8;

(8)44×25

=11×4×25

=11×(4×25)

=11×100

=1100;

(9)76000÷8÷125

=76000÷(8×125)

=76000÷1000

=76;

(10)99×27+27

=(99+1)×27

=100×27

=2700;

(11)125×56

=125×(8×7)

=125×8×7

=1000×7

=7000;

(12)3874-(680+874)

=3874-874-680

=3000-680

=2320;

(13)99×45

=(100-1)×45

=100×45-1×45

=4500-45

=4455;

(14)37+125+63+175

=(37+63)+(125+175)

=100+300

=400;

(15)99×56+56-46

=(99+1)×56-46

=100×56-46

=5600-46

=5554;

(16)2688-534+112

=2688+112-534

=2800-534

=2266.

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