Download grade 8 integer test - Grade8-Math

Name
Date
Grade 8 Math Test
Integers
Part A: Multiple Choice - Circle the letter of the correct answer. (20 marks)
1. Which of the following is an example of an integer ?
A. -
2
5
B. 2.9
C.
2
D. -9
2. Which of the following has the least value?
A) -3 + (-2)
B) -3 + 2
C) 3 x 2
D) 3  (-2)
3. If the temperature at 7:00am was -4 C and the temperature rose 17 C during the morning, what
was the temperature by noon ?
A. -13
B. 21
C. 12
D. 13
4. Which of the following are ordered from greatest to least ?
1
5
, -0.3, 1.2,
2
2
5
1
B.
, 1.2, -0.3, 2
2
5 1
C. 1.2, , - , -0.3
2 2
1
5
D. -0.3, - , 1.2,
2
2
A. -
5. What is
9
4
9
B.
4
17
C.
4
17
D. 4
A. -
15
3
in simplest form ?
4
2
6. What is (-5.6)  (-0.16) ?
A. +35
B. -0.35
C. -3.5
D. +3.5
7. Which is the correct answer for (A.
B.
C.
D.
1
X -4) + [-12  (+3)] ?
2
+4
+2
-2
0
8. Which set of integers is arranged from least to greatest ?
A. -3, +3, -2, +2, -1, +1
B. +4, +2, +1, -4, -7
C. -7, -5, -1, 0, +3, +4
D. 0, +4, -5, +6, -7
9.
10.
11. How many integers are greater than -12 but less than -7?
A. none
B. 19
C. 5
D. 4
12. Which statement is FALSE?
A. -1 > -8
B. 0 < 1
C. -5 < 3
2
D. -4 > -3
13. 15 + 3 x 2 – 6  3 = ____
A.
B.
C.
D.
5
10
19
34
14. What is
A. +18
 252
in simplest form?
 14
B. +238
C. -238
D. -18
15. Which arrangement of tiles models -2?
A)
Legend
positive
negative
B)
C)
D)
16. On a number line from -10 to +10, which integer is halfway between -7 and +1 ?
A. -5
B. +5
C. 0
D. -3
17. What is the product of -4 and -25 ?
A. +29
B. +100
C. -100
D. -29
18.
19.
3
20. Each term in a number sequence is 8 less than the term before it. Suppose the third term of
that sequence is 21. What is the fifteenth term ?
A. -67
B. -75
C. -83
D. -120
Part B: Make sure to answer ALL of the following questions. YOU MUST
SHOW YOUR WORK!
1. Show where you would locate each of the following numbers on the line provided. (8 marks)
1
4
-0.4
-
5
3
1.7
2. Look at the pattern below. ( 5 marks)
-15, -11, -7, -3, ___, ___, ___, ___.
If the pattern were to continue, what would the 8th term be? SHOW YOUR WORK!
3. List 2 ways the integer – 64 can be expressed as a product of 3 integers. ( 4 marks)
4
4. Two integers are 15 apart on the number line. One of the integers is -12. What are the 2 other
possibilities for the integer? (4 marks)
5. Add or subtract the following integers. Be careful with the signs! (9 marks)
a). (-3.8) + (-1.2)
1
5
b). (- ) - ( -1
2
3
) + (- )
3
15
c). (-8.7) - (-4.8)
6. Multiply and divide each of the following. Be careful with the signs! (9 marks)
a). (
11
15
) ( - ) (-2)
5
3
b). (-3)(-4)(-10)
c).
 99
9
7. What is meant by the zero principal ? Give an example (you can draw bingo chips if you like). – 5
marks
5
8. SHOW and EXPLAIN (using counters or a number line) each of the following : (8 marks)
a). (-2) + (+5)
b). (-1) - (+3)
9. Answer each of the following: (24 marks)
a). 10 + 2  (32 – 10)
d). [-6 - (-5)]3
b). -
2
1
÷ (-4 + )
3
3
e). 18  (-2 + 4) + 3 X (-6)
BONUS: Solve
6
c). (15 + 32 – 12)  (-2)
f). (
1 3
3
3
) - (- X - )
2
2
4