 | Arthur Schultze - 1906 - 618 halaman
...equations depends upon the following principles, called axioms: 1. If equals be added to equals, the sums are equal. 2. If equals be subtracted from equals, the remainders are equal. 3. If equals be multiplied by equals, the products are equal 4. If equals be divided by equals, the quotients... | |
 | Arthur Schultze - 1918 - 336 halaman
...equations depends upon the following principles, called axioms : 1. If equals be added to equals, the sums are equal. 2. If equals be subtracted from equals, the remainders are equal. 3. If equals be multiftlied by equals, the products are equal. 4. If equals be divided by equals, the... | |
 | Edward Herbert Cameron - 1927 - 490 halaman
...studied. These general principles are the same as those sometimes given as postulates in geometry, viz.: (1) If equals be added to equals the wholes are equal....subtracted from equals the remainders are equal. (3) If equals are multiplied by equals the products are equals. (4) If equals are divided by equals the... | |
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However this may be, it is certainly known from actual knowledge of school practice that pupils who have been instructed under psychological methods have had but little difficulty in comprehending the making-up method, and have quickly acquired skill... 
