问题 解答题
用你喜欢的方法计算下列各题:
125×103-125×32700-425-175125×88
25×7×432+26+74+16863×25+25×37
99×32+3225×4448×213-13×48
41+127+59+1731300÷25÷4156×l0l-156.
答案

(1)125×103-125×3

=125×(103-3)

=125×100

=12500;

(2)2700-425-175

=2700-(425+175)

=2700-600

=2100;

(3)125×88

=125×8×11

=1000×11

=11000;

(4)25×7×4

=25×4×7

=100×7

=700;

(5)32+26+74+168

=32+168+(26+74)

=200+100

=300;

(6)63×25+25×37

=(63+37)×25

=100×25

=2500;

(7)99×32+32

=(99+1)×32

=100×32

=3200;

(8)25×44

=25×4×11

=100×11

=1100;

(9)48×213-13×48

=48×(213-13)

=48×200

=9600;

(10)41+127+59+173

=41+59+(173+127)

=100+300

=400;

(11)1300÷25÷4

=1300÷(25×4)

=1300÷100

=13;

(12)156×l0l-156

=156×(l0l-1)

=156×l00

=15600.

判断题
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