2.求未知数x
x+361=890 | 215-x=75 | x-98=127 | 440+x=440 |
1.计算:
7629+58644÷324 | 13914÷(291+482) | 6264÷(9×29) |
75×(15846÷417) | 8504-546+731 | 8130÷30×450 |
20.竖式计算:
8450÷325= | 47880-1590= | 82150+26540= |
624×35= | 126×306= | 86372÷286= |
18.填得数
0 160971 160979 160985 160989 160995 160997 161001 161007 161009 161015 161021 161025 161027 161031 161037 161039 161045 161049 161051 161055 161057 161061 161063 161065 161066 161067 161069 161070 161071 161073 161075 161079 161081 161085 161087 161091 161097 161099 161105 161109 161111 161115 161121 161127 161129 161135 161139 161141 161147 161151 161157 161165 199269
2300-800= | 32×150= | 520-180= | 360+150= | 8024-4728= |
800÷16= | 1000-620= | 143×257= | 30×300= | 32×50= |
7505+1976= | 848×153= | 430+90= | 1997+7991= | 408÷8= |
7200÷8= | 6416÷16= | 348÷69= | 160×30= | 979÷89= |
125×80= | 270+350= | 364-97= | 580+197= | 197+98= |
6900÷30= | 399+126= | 99+136= | 860-370= | 165-97= |
25607-7938= | 198+87= | 123-99= | 4986-1299= | 352-99= |
8960÷28= | 3780÷35= | 470+290= | 720÷3= | 8398÷38= |