问题
计算题
选择合理的方法进行计算。
|
答案
(1)原式=213×(42+58) | |
=213×100 | |
=21300 | (2)原式=730-850÷25 |
=730-34 | |
=696 | |
(3)原式=(8.29+0.71)+(3.7+6.3) | |
=9+10 | |
=19 | (4)原式=96+20-38 |
=116-38 | |
=78 | |
(5)原式=2.04-1.69 |
=0.35
=18
选择合理的方法进行计算。
|
(1)原式=213×(42+58) | |
=213×100 | |
=21300 | (2)原式=730-850÷25 |
=730-34 | |
=696 | |
(3)原式=(8.29+0.71)+(3.7+6.3) | |
=9+10 | |
=19 | (4)原式=96+20-38 |
=116-38 | |
=78 | |
(5)原式=2.04-1.69 |
=0.35
=18