Open Up - Grade 7 - Mathematics - Unit 6 - Lesson 18

For the expression, write an equivalent expression that uses only addition.20 - 9 + 8 - 7

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7.NS.1.c

7.EE.1

For the expression, write an equivalent expression that uses only addition.4x - 7y - 5z + 6

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7.NS.1.c

7.EE.1

For the expression, write an equivalent expression that uses only addition.- 3x - 8y - 4 - \frac{8}{7}z

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7.NS.1.c

7.EE.1

Kiran wrote the expression x - 10 for this number puzzle: “Pick a number, add -2, and multiply by 5.”Lin thinks Kiran made a mistake.How can she convince Kiran he made a mistake?

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7.NS.1.c

7.EE.1

The output from a coal power plant is shown in the table: Similarly, the output from a solar power plant is shown in the table: Based on the tables, is the energy output in proportion to the number of days for either plant? If so, write an equation showing the relationship. If not, explain your reasoning.

Tags

7.NS.1.c

7.EE.1