Stretching and Shrinking Pre Assessment
Do Not Use Calculators on this Assessment
Name ______Period______
Questions / AnswersAdd and Subtract the following problems:
1. / 5 / + / 7 / = / 2. / 2 / - / 1 / =
6 / 6 / 5 / 10
3. / 2 / + / 3 / = / 4. / 14 / - / 4 / =
3 / 4 / 20 / 20
/
- ______
- ______
- ______
- ______
Multiply or divide the following problems:
5. / 2 / x / 5 / = / 6. / 7 / ÷ / 1 / =
10 / 8 / 8 / 2
/ 5.______
6.______
Simplify the following fractions:
7. / 12 / = / 8. / 25 / = / 9. / 8 / =
72 / 5 / 20
/ 7.______
8.______
9.______
Match the following vocabulary words:
A. Having a whole part and a fractional part
B. Same general shape, same angles, side
change at proportional rate
C. figures that have the same shape and size
D. A fraction in which the numerator is equal
to or greater than the denominator / 10. Similar______
11. Congruent______
12. Mixed Number______
13. Improper Fraction______
14. Choose the prime factorization of 160
a. 1 x 2 x 2 x 2 x 2 x 2 x 5
b. 2 x 2 x 2 x 10
c. 24 x 5
d.2 x 2 x 2 x 2 x 2 x 5 / 14.______
15. 320,000 written in scientific notation would be... Explain your choice.
a. 320 x 103 b. 32 x 104
c. 3.2 x 105 d. 0.32 x 106 / 15. ______
16. What is the measurement of the missing side?
∆ ∆ / 16. ______
17. Are these shapes similar or congruent?
□□ / 17.______
18. On the grid below draw ∆ABC with the following coordinates: A (0,2), B (6,2), C (4,4).
19. On the grid above, create ∆A’B’C’ by applying a scale factor of 2. What will the new coordinates be? / 18. (answer on graph)
19.A’ =
B’ =
C’ =
20. a. Are these rectangles similar? How do you
know?
- What is the scale factor from small to large?
2 6
3
9 / 20. a.
b.______