题目内容
能用简便运算必须简便运算
|
| (1)解:原式= = =3+3=6 |
(2)解:原式=4×(-10) ×( =-32+30-20 =-22 |
| (3)解:原式=25+2× =25-3-4 =18 |
(4)解:原式=137×( =137×0 =0 |
| (5)解:原式=-2+ = -4+ = -3 |
(6)解:原式=6÷( =6÷2 =3 |
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题目内容
能用简便运算必须简便运算
|
| (1)解:原式= = =3+3=6 |
(2)解:原式=4×(-10) ×( =-32+30-20 =-22 |
| (3)解:原式=25+2× =25-3-4 =18 |
(4)解:原式=137×( =137×0 =0 |
| (5)解:原式=-2+ = -4+ = -3 |
(6)解:原式=6÷( =6÷2 =3 |