cfore, 205702 5 x 11 x 11 x 17 2 x 5 x 11" x 17
EXERCISE 2C
actorization of each of the following numbers:
7. 252
12. 1323
17. 4641
3. 48
8. 420
13. 8712
18. 4335
4. 56
9. 637
14. 9317
19. 2907
HCF AND LCM
Answers
Use the model to answer the following questions.
How many fives are in the model?
How many threes are in the model?
What does the expression represent in words?
What expression could we write to represent the model?
b. Use the new model and the previous model to answer the next set of questions.
How many fives are in the model?
How many threes are in the model?
What does the expression represent in words?
What expression could we write to represent the model?
c. Is the model in part (a) equivalent to the model in part (b)?
d. What relationship do we see happening on either side of the equal sign?
e. In 5th grade and in Module 2 of this year, you have used similar reasoning to solve problems. What is the name of the property that is used to say that 2(5 + 3) is the same as 2 x 5 + 2 x 3?
Example 2
Now, we will take a look at an example with variables.
What does the model represent in words?
What does 2a mean?
How many a's are in the model?
How many b's are in the model?
What expression could we write to represent the model?
How many a's are in the expression?
How many b's are in the expression?
What expression could we write to represent the model?
Example 3
Use GCF and the distributive property to write equivalent expressions.
1. 3f + 3g
2. 6x + 9y
3. 3c + 11c
4. 24b + 8
I hope you are understand my solution