题型：填空题 题类：常考题 难易度：普通
两位数减整十数（不退位）990（10题）
 {#blank#}1{#/blank#} |  {#blank#}2{#/blank#} |
 {#blank#}3{#/blank#} |  {#blank#}4{#/blank#} |
从大到小排序：{#blank#}5{#/blank#}
| 20+3= | 99-90= | 6+70= | 9+30= | 46-6= |
| 5+60= | 28-8= | 44-40= | 80+9= | 30+7= |
| 40+4= | 66-6= | 4+30= | 81-1= | 93-3= |
29+30= | 71-8= | 67-20= | 79+5= | 80-50= |
62+7= | 47-6+40= | 27+6+8= | 72+(35-15)= | 46-(7+13)= |
试题篮
