...man Add the following: How do the results of the corresponding problems in the two groups compare? 59 RULE: To subtract one number from another, change the sign of the subtrahend mentally and add. Exercise 35 Subtract: 14. -5 (a+y) 16. 14.92 (ma-n2)149.2 (m2-n2) 17. 3^x2+5fy3-...

...that subtraction of algebraic numbers may be changed into algebraic addition by the following law : To subtract one number from another change the sign of the subtrahend and add the result to the minuend. Thus, the subtraction example + la - 3a + 10 a may be changed to the addition...

...by changing the signs of the terms in the parenthesis. Hence, the Rule for subtracting one algebraic number from another : Change the sign of the subtrahend and add the resulting number to the minuend. This rule can easily be explained if we consider concrete numbers. Suppose a man's assets to be called...

...parts is (— 7)+(- 6) +( — 1) = -14. The final result sought is, therefore, (+9) + ( -14) = -5. (c) To subtract one number from another, change the sign of the subtrahend and add the result to the minuend. Thus(-7)-(-5) = ((d) To multiply one number by another, find the product of...

...+8 -3 -4 SUBTRACTION - 33 Compare the results in the two problems above and note the following rule: Rule. To subtract one number from another change the sign of the subtrahend and apply the rules for addition. EXERCISE 3 Subtract : 1. +32 +20 Ans. 12. 2. -24 -18 - 6. 3. -42 + 16...

...whenever you wished to subtract two numbers. The following rule will enable you to work more rapidly: To subtract one number from another, change the sign of the subtrahend and then follow the rules for adding numbers. To see that this rule agrees with your experiences try it...

...find the number + 9 a, which when added to — 2 a will give + 7 a. EXAMPLES These examples illustrate the RULE. To subtract one number from another, change the sign of the subtrahend and add. EXERCISES Subtract the lower number from the upper : 1. From + 10 a + 5a + 5a 3. From take Result —...

...sign of the number having the larger absolute value. Thus, (+2) + (- 9) = - 7; (+ 16)+(- 5) = + 11. To subtract one number from another, change the sign of the subtrahend and add the result to the minuend. Thus, (- 6)-(+4) = -6 +(-4) = - 10; The sign of the product or the quotient...

...examples can be changed immediately into addition examples by changing the sign of the subtrahend. Rule. To subtract one number from another, change the sign of the subtrahend and add. It is best to get into the habit at once of making the change in sign mentally, without putting it...

...can convert our adding element into one that also subtracts by applying a well-known rule of algebra: To subtract one number from another, change the sign of the subtrahend, and add* Thus, if we possessed some sign-inverting device, we could also use our adding element for subtraction....