【题目】口算.
70×50=________ | 45×20=________ | 3000÷6÷5=________ | 1600÷8=________ | 50×60=________ |
60×90=________ | 909÷3=________ | 11×90=________ | 297÷6≈________ | 134÷7≈________ |
【题目】口算.
70×50=________ | 45×20=________ | 3000÷6÷5=________ | 1600÷8=________ | 50×60=________ |
60×90=________ | 909÷3=________ | 11×90=________ | 297÷6≈________ | 134÷7≈________ |