题目内容
锐式计算,能简算的要简算。
|
| (1)原式= =2 |
(2)原式= =1 |
(3)原式= = |
| (4)原式= = |
(5)原式= =3 |
(6)原式= = |
| (7)原式=(45+15)× =60× = 45 |
(8)原式=24× =2+3 =5 |
(9)原式= =18-4 =14 |
| (10)原式=(2007+1)× =2006 |
(11)原式= = |
(12)原式= =2+440% =640% |
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题目内容
锐式计算,能简算的要简算。
|
| (1)原式= =2 |
(2)原式= =1 |
(3)原式= = |
| (4)原式= = |
(5)原式= =3 |
(6)原式= = |
| (7)原式=(45+15)× =60× = 45 |
(8)原式=24× =2+3 =5 |
(9)原式= =18-4 =14 |
| (10)原式=(2007+1)× =2006 |
(11)原式= = |
(12)原式= =2+440% =640% |