预约小初高体验课 享受1对1辅导
各位家长请注意:此表单用于预约体验课,不想预约的家长,请勿填写
181.150×40÷50
=1 50- 50×40
=3×40
=120
182.210÷42×6
=210-7÷6×6
=30
183.375×480+6250×48
=480× (375+ 625)
=480000
184.13×99
=13×(100- 1)
=1300- 13
=1287
185.7900÷4一25
=7900+(4×25)
=79
186.5600÷(25×7)
=56×100-25+7
=56-7× 100-25
=32
187.39600 一25
=396×100-25
=396×4
=1584
189.67×21+18×21+85×79
=21×(67+18)+85×79
=21×85+85×79
=85×(21+79)
=8500