Transcript What is 20? - Aurora City Schools

Patterns and Number Sense Number Sense Number Sense
Order of Operations Computation
Algebra
Decimals
Potpourri
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15 pt
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25 pt
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Input
Output
4
12
8
16
12
20
15
23
21
Ben used a rule to create the input –output
box above. If the same rule is followed for
the last row, this is the output number in
the last row.
What is
29?
Becky reads every day from 8 pm to
8:30 pm. This expression below could
be used to find the total number of
minutes she reads in ‘n’ days.
A.
B.
C.
D.
30 + n
30 – n
30n
30 ÷ n
What is
C. 30n?
This expression below
is the same as 4 times a
number.
A. 4 + n
B. 4n
C. 4 x 4
D. 4 ÷ n
What is
B. 4n ?
This number equals t in
equation below which is
an example of the
distributive property of
multiplication with
addition:
24 x 9 = ( t x 9) + (4 x 9)
What is 20?
Week Number
Number of Miles
1
4
2
8
3
12
4
16
Sam recorded the number of miles he
rode his bike each week for 4 different
weeks. If he continues the same
pattern, this is the number of miles he
will ride in week number 7.
What is
28 miles?
Simplify:
5+3x
3
2
=
What is
29?
Explanation: To find the answer to 5 + 3 x 23 , you must do the
exponent first. 23 means 2 x 2 x 2 which equals 8. Then you
must do the multiplication, (3 x 8) . Then, you must add 5.
This is the second step
when following the
order of operations
rules.
What is
Simplify the
exponents?
Simplify:
20 – 6 + 5 x 2
What is
24?
Simplify:
2
36 ÷ 3 + 4
What is
8?
This number goes
in the blank to
make the
equation true:
4 + __ x 5 – 3 = 16
What is
3?
Jill wanted to identify two numbers
whose product is 15. These are two
numbers she could use.
A. 12 and 3
B. 30 and 2
C. 20 and 5
D. 5 and 3
What is
D. 5 and 3 ?
Explanation: Product is the answer to a multiplication problem.
This is the estimated
product of 304 and 49.
What is
15,000?
Explanation: Product means the answer to a
multiplication problem. To estimate 304 x 49, you
need to change the problem to 300 x 50.
I am thinking of two numbers.
The sum of the two numbers is 6.
The difference of the two numbers is 2.
The product of the two numbers is 8.
The quotient of the two numbers is 2.
Hint: Both numbers are less than 5.
These are my two numbers.
What are the numbers
4 and 2?
There are 74 books that
need to be put into
boxes. Each box can
hold 9 books. This is
the number of boxes
that will be filled.
What is
8 boxes?
Explanation: 8 boxes will be filled because 8 x 9 = 72,
but you will need an extra box for the other two books.
There are 24 pencils in a
package. Bill has 3
packages. He opens a
package and takes out
three of the pencils and
gives them away. This is
the number of pencils Bill
has left.
What is
69 pencils?
Bill and Tom ran a race. Bill
finished the race in 24.9
seconds. Tom finished the
race in 24.86 seconds. This
is the person who won the
race and by how much they
won.
What is
Tom won the race by
0.04 seconds?
Explanation: 24.9 – 24.86 = 0.04
Jenny and Alice had a
jumping contest.
Jenny jumped 3.6
meters. Alice jumped
0.05 meters more than
Jenny. This is how
many meters Alice
jumped.
What is
3.65 meters?
This is the number
of hundredths
there are in 3
tenths.
What is
30 hundredths?
Gary ran a race in 45.69
seconds. This is how
fast he ran rounded to
the nearest tenth of a
second.
What is
45.7 seconds?
This is the missing
number in the equation
below:
3.4 + x = 8
What is
4.6?
This word means the
answer to an addition
problem.
What is the
sum?
This is the number of
minutes there are in
3 hours.
What is
180 minutes?
This is the missing
number in the
following problem:
34 + ___ = 80
What is
46?
There are 3 fish tanks in a
store. There are 100 fish
all together in all three fish
tanks. The first tank has
40 fish and the second
tank has 35 fish. This is
the number of fish in the
third tank.
What is
25 fish?
This number is even,
has 3 for a factor, is less
than 50, and is a square
number.
What is the number
36?