问题 解答题
计算,能简算的要简算(这一题在作业纸上完成).
(300-1456÷26)×324620+(401-438÷73)9999+998+97+6
25×38×4135×99235-135÷5
49×99+49125×(8+4)125×32×25
5620÷(562×5)97-12×6+43175+25÷25+15
156×l0l-15699×56+56一462(250+25)×40.
答案

(1)(300-1456÷26)×32

=(300-56)×32

=244×32

=7808

(2)4620+(401-438÷73)

=4620+(401-6)

=4620+395

=5015

(3)9999+998+97+6

=(9999+1)+(998+2)+(97+3)

=10000+1000+100

=11100

(4)25×38×4

=25×4×38

=100×38

=3800

(5)135×99

=135×(100-1)

=135×100-135

=13500-135

=13465

(6)235-135÷5

=235-27

=198

(7)49×99+49

=49×(99+1)

=49×100

=4900

(8)125×(8+4)

=125×8+125×4

=1000+500

=1500

(9)125×32×25

=(125×8)×(4×25)

=1000×100

=100000

(10)5620÷(562×5)

=5620÷562÷5

=10÷5

=2

(11)97-12×6+43

=97-72+43

=25+43

=68

(12)175+25÷25+15

=175+1+15

=175+15+1

=191

(13)156×l0l-156

=156×(101-1)

=156×100

=15600

(14)99×56+56一462

=56×(99+1)-462

=5600-462

=5138

(15)(250+25)×40

=250×40+25×40

=10000+1000

=11000

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