11. | The boy had no difficulty with arithmetic . |
| 这男孩在算术上没有困难。
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12. | The teacher gave the class plenty of drill in arithmetic . |
| 教师让全班学生做大量的算术练习。
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13. | He occupied himself with solving some arithmetic problems. |
| 他忙着做算术题。
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14. | She surpassed her sister in arithmetic . |
| 她的算术比她姐姐好。
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15. | He is strong in arithmetic . |
| 他擅长算术。
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16. | He is quick at arithmetic . |
| 他在算术方面很灵敏。
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17. | Hindu and Arab venturesomeness brought arithmetic and algebra to the fore once again and placed it almost on a par with geometry. |
| 印度人和阿拉伯人的闯劲把算术和代数又一次提高到几乎和几何并驾齐驱的地位。
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18. | Let us look at parallels between arithmetic using binary numbers and arithmetic using decimal numbers. |
| 我们采用与十进制运算对比的办法来介绍二进制数的运算方法。
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19. | George can hardly understand arithmetic ,much less algebra. |
| 乔治连算术都不大懂,更不用说代数了。
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20. | Simple arithmetic indicates that …. |
| 简单计算表明…
|