Adding, Subtracting, Multiplying and Dividing Rational Numbers
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1.
After a pizza party there are 4 2/3 pizzas left over. If the pizzas are divided so that party goers can take home 1/6 of a pizza, how many guests can take home pizza?
a)
26 guests
b)
28 guests
c)
8 guests
d)
33 guests
2.
Bob has a piece of wood that is 3/4 inches long. He decides to cut pieces that are 1/8 inches long. How many pieces can Bob cut?
a)
6
b)
9
c)
3
d)
12
3.
Sarah needs to cut 7 and a half feet of ribbon into 2 and 2/3 feet pieces. How many pieces will she be able to make?
a)
4 and 5/6
b)
2 and 13/16
c)
3
d)
20
4.
Sandy uses ⅛ of a pound of chocolate chips in each batch of cookies she makes. Yesterday Sandy used ⅘ of a pound to make all her batches. How many batches of cookies did Sandy make?
a)
4/40
b)
1/10
c)
6⅖
d)
5⅓
5.
When adding or subtracting fractions, I must always have a (a) . I then add or subtract the (b) and keep (c) the same.
เลือกจากคำด้านล่าง
Common Denominator
Numerators
Denominator
Common Numerators
Divisor
Dividend
6.
When (a) decimals, I must always (b) the decimals.
เลือกจากคำด้านล่าง
adding or subtracting
line up
multiplying or dividing
get rid of
7.
Sammy has 2 2/3 Hershey bars to share with 4 of her friends. How much of a Hershey bar will each of her 4 friends receive?
a)
1/3 Hershey bar each
b)
5/3 Hershey bar each
c)
2/3 Hershey bar each
d)
1 3/4 Hershey bar each
8.
When adding fractions, what does LCD mean?
a)
Least Common Denominator
b)
Lowest Common Divsion
c)
Last Corrective Divisor
d)
Least Correct Decision
9.
In what types of problems do you have to make sure the exponents are the same before beginning to compute?
a)
Adding and Subtracting
b)
Multiplying and Dividing
c)
Subtracting and Dividing
d)
Adding and Multiplying
10.
Last Friday Samantha had $22.50. Over the weekend, she received some money for cleaning. She now has more than $32.00. Which inequality represents this situation?
a)
22.50 - x > 32
b)
22.50x > 32
c)
22.50 + x > 32
d)
22.50 +x < 32
11.
When do we switch the inequality symbol?
a)
when multiplying or dividing by a NEGATIVE
b)
when adding and subtracting a NEGATIVE
c)
we never switch the inequality
d)
When there is a negative in the problem
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Adding, Subtracting, Multiplying and Dividing Rational Numbers