Section 28.3 Deliberate Practice: Practice with Negatives
Algebra is a skill, which means it requires practice to become proficient. But it will take more than rote repetition to get there. Deliberate practice is the thoughtful repetition of a task. For each of these sections, you will be given a list of specific skills or ideas to focus on as you practice thinking through the problems.
Focus on these skills:
Mentally visualize collections of integer chips to help think through the calculation.
Present your work legibly.
Worksheet Worksheet
Instructions: Perform the given calculation mentally.
1.
Calculate \(24 + (-38)\) mentally.
2.
Calculate \(-36 - 57\) mentally.
3.
Calculate \(25 - (-18)\) mentally.
4.
Calculate \(-23 + 74\) mentally.
5.
Calculate \(-44 - (-57)\) mentally.
6.
Calculate \(35 + (-68)\) mentally.
7.
Calculate \(-29 - 55\) mentally.
8.
Calculate \(-242 + (-159)\) mentally.
9.
Calculate \(186 - (-372)\) mentally.
10.
Calculate \(-218 - (-386)\) mentally.