Topic 1
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100
A climber descends 3 miles into a canyon.
What integer represents the descent of her climb?
The descent of her climb is represented by −3.
100
Find the answer:
-9×-8= ?
-9×8=?
-9×-8= 72
-9×8= -72
100
In 3 days, a typical robin can eat up to 42.6 feet of earthworms. What is the unit rate?
3 days ÷ 42.6 feet = ?
The unit rate is 14.2 feet of earthworms per day.
3 days ÷ 42.6 feet = 14.2 feet
100
What is 57% of 690.
x=393.3
100
Which is the value of x?
1.75(5)+2= x
x=10.75
200
What is the decimal equivalent of:
5/8=
8/11=
5/8 = 0.625
8/11 = 0.7272....
200
Find the answer:
-96×1.8=?
-9.6×-1.8=?
-96×1.8=-17.28
-9.6×-1.8=17.28
200
Does the table show a proportional relationship between x and y?
| x | 200 | 400 | 500 |
| y |600 |1,200 |1,500|
Yes, there is a proportional relationship between x and y.
600÷200= 1\3 1,200÷400= 1/3
1,500÷500= 1/3
200
What percent of 19 is 4.75?
4.75 is 25% of 19.
200
Combine like terms.
1/3n + 2n − 7− 4/3
2 1/3n − 8 1/3
300
Find the sum of:
(-28)+(-19).
|-28|+|-19|=28+(-28)+(-19)
The sum of (-28)+19
300
Find the answer
-39÷3=?
-39÷-3=?
-39÷3=-13
-39÷-3=13
300
Is there a proportionality constant and, if so, what is it?
27÷3= ? 45÷5= ? 54÷6=?
The proportionality constant is 9.
27÷3=9 45÷5=9 54÷6= 9
300
Which is the value of c ?
c=0.06×180,000
c=10,800
300
Expand the expression:
1/4(h+7)
(1/4×h)+(1/4×7)= 1/4+1.75
400
Find: -7−(8).
-7+(-8)=-15
400
Simplify:
-3/4 ÷ 15/24
-3/4 ÷ 15/24= -3/4×24/15=-72/60=-6/5=-1 1/5
400
Find the answer:
3/2 × 25/25= ?
= 75/50
400
Which is the value of P?
44= P×16
2.75=P
400
Use the Distributive Property to factor the expression:
12x=3×4x
3(4x−3y+5)
500
Find the answer:
-5 1/2−1.75=?
= -7 1/4
500
Find the answer:
-2 3/8 ÷ 15=?
= -19/120
500
Yes, The constant of proportional is 2 miles walked in 1 hour.
500
Which is the value of I?
I= 400×0.025×3
I=30
500
Simplify the expression?
n+(2n−1)
=(n+2n)−1
=3n−1