早教吧 育儿知识 作业答案 考试题库 百科 知识分享

用你喜欢的方法计算下列各题:125×103-125×32700-425-175125×8825×7×432+26+74+16863×25+25×3799×32+3225×4448×213-13×4841+127+59+1731300÷25÷4156×l0l-156.

题目详情
用你喜欢的方法计算下列各题:
125×103-125×3 2700-425-175 125×88
25×7×4 32+26+74+168 63×25+25×37
99×32+32 25×44 48×213-13×48
41+127+59+173 1300÷25÷4 156×l0l-156.
▼优质解答
答案和解析
(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.