题目内容
| 脱式计算 17255÷85×49-749 | 〔3
| 2.75+3
| |||||||||||
9.9+2.5×
| 6
|
(1)17255÷85×49-749, =203×49-749, =9947-749, =9198; (2)〔3
=【3
=【3.75-2.4】÷13.5, =1.35÷13.5, =0.1; | |||||||||||||||||||||||||||||
(3)2.75+3
=(2.75+1.25)+(3.8+10.2), =4+14, =18; (4)9.9+2.5×
=9.9+2-1.2, =10.7; (5)6
=6
=6
=22. |
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