1.
| 直接写出得数 34×2= | 150+70= | 100÷5= | 7×103= |
| 450÷9= | 320-40= | 550÷5= | 7×13= |
| 96×3= | 405×2= | 0÷8= | 85÷1= |
| 24×5= | 75×4= | 2.25+4= | 125×8= |
| 180-150÷30= | 3600÷9= | 10-5×5= | 50-4.9= |
18.脱式计算.
| 600+320÷8 | 15+5×7 | 5+20÷5 |
| (1000-340)÷6 | 16×7×8 | 400÷8-45. |
17.竖式计算.
| 205×6= | 139×8= | 240×3= |
| 1.6+12.8= | 426+178-315= | 1000-397= |
16.直接写出得数.
| 93-44= | 5×80= | 4×25= | 36+48= |
| 505÷5= | 102×4= | 130×7= | 400÷8= |
| 480÷4= | 250+160= | 0×47= | 1600÷2= |
| 1.2+6.1= | 5.8-3.2= | 630÷3= | 18×5= |
13.计算机的清除键是( )
0 134668 134676 134682 134686 134692 134694 134698 134704 134706 134712 134718 134722 134724 134728 134734 134736 134742 134746 134748 134752 134754 134758 134760 134762 134763 134764 134766 134767 134768 134770 134772 134776 134778 134782 134784 134788 134794 134796 134802 134806 134808 134812 134818 134824 134826 134832 134836 134838 134844 134848 134854 134862 199269
| A. | AC | B. | ON | C. | OFF | D. | CE |