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Big Ideas Math: Modeling Real Life, Grade 7
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Big Ideas Math: Modeling Real Life, Grade 7 View details
3. Adding Rational Numbers
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Exercise 5 Page 21

Write the numbers so that each place value is vertically aligned. Then subtract the digits in each place value. Work from right to left, starting with the ones place, and regrouping as needed.

31

Practice makes perfect
To subtract whole numbers, we first write them so that each place value is vertically aligned. 6& 9 - 3& 8 Next, we subtract the digits in each place value. We work from right to left, starting with the ones place, and regrouping as needed. Let's do it!
subtraction
We found that the difference between 69 and 38 is 31.
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arrow_right Try It p.18-19
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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)
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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)
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Review & Refresh 9 (Page 21)
arrow_right Concept, Skills, & Problem Solving p.21-22
Concept, Skills, & Problem Solving 10 (Page 21)
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Concept, Skills, & Problem Solving 37 (Page 22)