题目内容
| 40×20=______; | 25×4=______; | 450÷9=______; | 11×60=______; |
| 630÷3=______; | 350÷7=______; | 200×0=______; | 2000÷2=______; |
| 200÷5=______; | 4000÷8=______; | 1000÷2=______; | 90+15=______; |
| 68÷4=______; | 13×30=______; | 810÷90=______; | 48+16=______. |
解;
故答案为:800,100,50,660,210,50,0,1000,40,500,500,105,17,390,9,64.
| 40×20=800; | 25×4=100; | 450÷9=50; | 11×60=660; |
| 630÷3=210; | 350÷7=50; | 200×0=0; | 2000÷2=1000; |
| 200÷5=40; | 4000÷8=500; | 1000÷2=500; | 90+15=105; |
| 68÷4=17; | 13×30=390; | 810÷90=9; | 48+16=64; |
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