用合理的方法计算.(共9道)68+176+232+82457×99(3432÷33-24)÷16125×45-125×37(25+4)×425×32×1257100-137-263+3004800÷(

题目简介

用合理的方法计算.(共9道)68+176+232+82457×99(3432÷33-24)÷16125×45-125×37(25+4)×425×32×1257100-137-263+3004800÷(

题目详情

用合理的方法计算.(共9道)
68+176+232+82457×99(3432÷33-24)÷16
125×45-125×37(25+4)×425×32×125
7100-137-263+3004800÷(48×2)51×34+49×34.
题型:解答题难度:中档来源:不详

答案

(1)68+176+232+824
=(68+232)+(176+824)
=300+1000
=1300

(2)57×99
=57×(100-1)
=57×100-57
=5700-57
=5643

(3)(3432÷33-24)÷16
=(104-24)÷16
=80÷16
=5

(4)125×45-125×37
=125×(45-37)
=125×8
=1000

(5)(25+4)×4
=25×4+4×4
=100+16
=116

(6)25×32×125
=(25×4)×(8×125)
=100×1000
=100000

(7)7100-137-263+300
=(7100+300)-(137+263)
=7400-400
=7000

(8)4800÷(48×2)
=4800÷48÷2
=100÷2
=50

(9)51×34+49×34
=(51+49)×34
=100×34
=3400

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