Question
3. Add these integers Use regrouping to make more manageable sume (-450)+(+300)+(+80)= (-100)+(-25)+(+75)= b) (-145)+(+100)+(-25)= e (-100)+(+25)+(-7)= c) (-24)+(-30)+(-82)= fl (+80)+(+25)+(-50)+ 4. Add these integers Use the strategy of your choice a) (-58)+(+40)+(+8)= b) (+100)+(-57)+(+57)= c) (+46)+(+34)+(-20)+(-26)= d) (-125)+(-34)+(+125)+(-16)=
Solution
4
(226 Votes)
Anais
Master ยท Tutor for 5 years
Answer
### 3. a) -70, b) -50, c) -70, d) -82, e) -136, f) 55### 4. a) -10, b) 100, c) 34, d) -50
Explanation
## Step 1: Simplify the first expression### We have
. This simplifies to
. Adding the positives gives
. Then,
.## Step 2: Simplify the second expression### We have
. This simplifies to
. Combining the negatives gives
. Then,
.## Step 3: Simplify the third expression### We have
. This simplifies to
. First,
. Then,
.## Step 4: Simplify the fourth expression### We have
. This simplifies to
. First,
. Then,
.## Step 5: Simplify the fifth expression### We have
. This simplifies to
. Combining all the negatives gives
.## Step 6: Simplify the sixth expression### We have
. This simplifies to
. First,
. Then,
.## Step 7: Simplify 4a### We have
. This simplifies to
. Combining the positives gives
. Then
.## Step 8: Simplify 4b### We have
. This simplifies to
. The
and
cancel out, leaving
.## Step 9: Simplify 4c### We have
. This simplifies to
. Combining the positives gives
. Combining the negatives gives
. Then,
.## Step 10: Simplify 4d### We have
. This simplifies to
. The
and
cancel out. Then
.