Which expression can be used to find the distance between - 2 and 6?
Look back in your notes.
a)
-2 - 6
b)
|-2 - 6|
c)
|-2| - |6|
d)
|6 - 2|
13.
What is the sum of a number and its opposite?
a)
negative number
b)
positive number
c)
zero
14.
Simplify the expression.
−361+553
a)
23013
b)
−23013
c)
13013
d)
−13013
15.
At the beginning of the week, Jimmy has $20 dollars. He spends $13 on Monday. He receives $2 on Tuesday. Then he spends $4 on Wednesday and spends $5 on Thursday. How much money does Jimmy have at the beginning of the day on Friday?
a)
- 4 dollars
b)
0 dollars
c)
44 dollars
d)
3 dollars
16.
What is the absolute value of a number?
a)
0
b)
the opposite of the number
c)
the distance between that number and zero
d)
a positive number
17.
Find the difference.
7−4−(21−2)
a)
21−10
b)
21−14
c)
−14−2
d)
−14−6
18.
Find the sum.
331+(−132)
a)
132
b)
−132
c)
5
d)
−315
19.
Simplify the expression.
-4.7 + 18.5
a)
23.2
b)
13.8
c)
-13.8
d)
-23.2
20.
Which of the following a considered integers?
Select all that apply.
a)
24
b)
0
c)
-3.5
d)
98
e)
-3
21.
When written as a decimal, the fraction 517 is a (a) decimal.
เลือกจากคำด้านล่าง
repeating
terminating
non-terminating
22.
When converted to decimal form, which of the following are repeated decimals?
Select all that apply.
a)
6513
b)
113
c)
97
d)
31
e)
85
23.
Find the sum of52 and −93 .
a)
−151
b)
151
c)
−1511
d)
1511
24.
Which could be used as the common denominator for 41 and 62 ?
a)
4
b)
12
c)
6
d)
16
25.
Which addition expression is shown on the number line?