第1个回答 2014-10-17
25×36×4
=25×4×36
=100×36
=3600
135×99
=135×(100-1)
=135×100-135
=13500-135
=13365
203-135÷5
=203-27
=176
97-12×6+43
=97-72+43
=25+43
=68
49×99+49
=49×(99+1)
=49×100
=4900
350÷14
=350÷7÷2
=50÷2
=25
175+25÷25+15
=175+1+15
=191
125×32
=125×8×4
=1000×4
=4000
37+125+63+175
=(37+63)+(125+175)
=100+300
=400
99×38+38
=38×(99+1)
=38×100
=3800
98+265+202
=98+202+265
=300+265
=565
102×56
=100×56+2×56
=5600+112
=5712本回答被提问者采纳