News
Get Premium
Dashboard

Dashboard Sign out
Big Ideas Math: Modeling Real Life, Grade 7
BI
Big Ideas Math: Modeling Real Life, Grade 7 View details
3. Adding Rational Numbers
Continue to next subchapter
search

Exercise 19 Page 21

When calculating the sum of two numbers with the same sign, we add their absolute values.

- 57.19

Practice makes perfect
We want to find the sum and simplify the result of the addition. Let's look at the given expression! - 32.306+( - 24.884) Now, we can find the sum of two rational numbers with the same sign. Recall that we can do so by adding their absolute values. Let's do it!
|- 32.306|+|- 24.884|
AbsNeg

|-32.306|=32.306

32.306+|- 24.884|
AbsNeg

|-24.884|=24.884

32.306+24.884
AddTerms

Add terms

57.19
Recall that both numbers were negative. This means that the sum is also a negative number, - 57.19.
Subchapter links expand_more
arrow_right Try It p.18-19
1
Try It 2 (Page 18)
Try It 3 (Page 18)
Try It 4 (Page 19)
Try It 5 (Page 19)
Try It 6 (Page 19)
arrow_right Self-Assessment for Concept & Skills p.19
Self-Assessment for Concept & Skills 7 (Page 19)
Self-Assessment for Concept & Skills 8 (Page 19)
Self-Assessment for Concept & Skills 9 (Page 19)
Self-Assessment for Concept & Skills 10 (Page 19)
11
arrow_right Self-Assessment for Problem Solving p.20
Self-Assessment for Problem Solving 12 (Page 20)
Self-Assessment for Problem Solving 13 (Page 20)
arrow_right Review & Refresh p.21
Review & Refresh 1 (Page 21)
Review & Refresh 2 (Page 21)
Review & Refresh 3 (Page 21)
Review & Refresh 4 (Page 21)
Review & Refresh 5 (Page 21)
Review & Refresh 6 (Page 21)
Review & Refresh 7 (Page 21)
Review & Refresh 8 (Page 21)
Review & Refresh 9 (Page 21)
arrow_right Concept, Skills, & Problem Solving p.21-22
Concept, Skills, & Problem Solving 10 (Page 21)
Concept, Skills, & Problem Solving 11 (Page 21)
Concept, Skills, & Problem Solving 12 (Page 21)
Concept, Skills, & Problem Solving 13 (Page 21)
Concept, Skills, & Problem Solving 14 (Page 21)
Concept, Skills, & Problem Solving 15 (Page 21)
Concept, Skills, & Problem Solving 16 (Page 21)
Concept, Skills, & Problem Solving 17 (Page 21)
Concept, Skills, & Problem Solving 18 (Page 21)
Concept, Skills, & Problem Solving 19 (Page 21)
Concept, Skills, & Problem Solving 20 (Page 21)
Concept, Skills, & Problem Solving 21 (Page 21)
22
23
Concept, Skills, & Problem Solving 24 (Page 22)
Concept, Skills, & Problem Solving 25 (Page 22)
26
27
Concept, Skills, & Problem Solving 28 (Page 22)
29
Concept, Skills, & Problem Solving 30 (Page 22)
Concept, Skills, & Problem Solving 31 (Page 22)
Concept, Skills, & Problem Solving 32 (Page 22)
Concept, Skills, & Problem Solving 33 (Page 22)
Concept, Skills, & Problem Solving 34 (Page 22)
Concept, Skills, & Problem Solving 35 (Page 22)
36
Concept, Skills, & Problem Solving 37 (Page 22)