Question
3. Add. Visualize a set of integer counters or a number line to help you. a) (-45)+(+30)= b) (-45)+(-30)= c) (+45)+(+30)= d) (+45)+(-30)= f) (-100)+(+25)= g) (+100)+(+25)= h) (+100)+(-25)= i) (-68)+(+34)= j) (-25)+(-40)+(+15)= __ k) (+50)+(-30)+(-40)= __ I) (+150)+(-75)+(-150)= __ e) (-100)+(-25)=
Solution
4.1
(184 Votes)
Reagan
Veteran ยท Tutor for 11 years
Answer
### a) -15### b) -75### c) 75### d) 15### e) -125### f) -75### g) 125### h) 75### i) -34### j) -50### k) -20### l) -75
Explanation
## Step 1: Adding Integers with Different Signs### When adding integers with different signs, subtract the smaller absolute value from the larger absolute value, and the result takes the sign of the integer with the larger absolute value.## Step 2: Adding Integers with the Same Sign### When adding integers with the same sign, add their absolute values, and the result takes the common sign.## Step 3: Applying the Rules to the Given Problems### We apply the rules from Steps 1 and 2 to each problem.a)
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