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Step-3

Title: Determine the value of an expression

Grade: 8-a Lesson: S1-L8

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Determine the value of an expression when a = 7 , b = 2 , c = 9 , d = 1 ca + 2bd
2	Step	Now substitute a,b,c,d values in the expression	(9) (7) + 2 (2) (1)
3	Step	After multiplication we get	63 + 4
4	Step	After adding we get	67
5		Answer	C

Step

Type

Explanation

Answer

Problem

Determine the value of an expression when a = 7 , b = 2 , c = 9 , d = 1
ca + 2bd

Step

Now substitute a,b,c,d values in the expression

(9) (7) + 2 (2) (1)

Step

After multiplication we get

63 + 4

Step

After adding we get

Answer