Transcript Evaluate the Following Numerical Expressions:

Evaluate the Following Numerical
Expressions:
2×5+3×2+4
2×(5+3×2+4)
2×5+3×(2+4)
2×(5+3)×2+4
(2×5)+(3×2)+4
2×(5+3)×(2+4)
Can the parentheses in any of these expressions be
removed without changing the value of the expression?
Kendra is making ½ of a recipe. The
full recipe calls for 3 ¼ cups of flour.
How many cups of flour should
Kendra use?
A. Helen raised $12 for the food bank last year
and she raised 6 times as much money this
year. How much money did she raise this
year?
B. Sandra raised $15 for the PTA and Nita
raised $45. How many times as much
money did Nita raise as compared to
Sandra?
C. Louis raised $45 for the animal shelter,
which was 3 times as much money as
Anthony raised. How much money did
Anthony raise?
For every number listed, multiply it by 2 and add 1
Number
0
1
2
3
A. What do you notice about your answers?
B. Sherri noticed that all the numbers she entered are odd.
– Does an even number multiplied by 2 result in an even or
odd number? Why do you think this is?
– Does an odd number multiplied by 2 result in an even or
odd number? Why do you think this is?
– Does an even number plus 1 result in an even or odd
number? Why do you think this is?
– Does an odd number plus 1 result in an even or odd
number ? Why do you think this is?
– Explain why the numbers you entered in the table are all odd?
4
5
10
23
57
100
309
Answer
Presley has 18 markers. Her teacher gives her three boxes
and asks her to put an equal number of markers in each
box.
Anthony has 18 markers. His teacher wants him to put 3
markers in each box until he is out of markers.
Before you figure out what the students should do, answer these
questions:
1. What is happening in these two situations?
2. How are they similar?
3. How are they different?
Figure out how many markers Presley should put in each box. Then figure
out how many boxes Anthony should fill with markers. Show your work.
Tehya and Kenneth are trying to figure out which
number could be placed in the box to make this
equation true.
2=☐÷6
Tehya insists that 12 is the only number that will
make this equation true.
Kenneth insists that 3 is the only number that will
make this equation true.
Who is right? Why?
Draw a picture to support your idea.
Which of the following are equal to
the number of dots in the picture
below? (Choose all that apply).












3+3+3
3+4
4+4+4
4+4+4+4
3+3+3+3
You won first place at your school Science Fair!
You have two choices for the prize:
Option 1: You can take $20 home with you today.
Option 2: Take $2 a day for the next 15 days.
a. Which option earns more money?
How much more?
b. Which option will you choose? Explain why.
Bo bought 20 tickets to play games at Family Fun
Night at his school. He wants to play each game at
least once. He needs to use all of his tickets.
How many times might he play each game?
Find at least two ways he can do it.
Game
Number of Tickets
Needed
Ring Toss
1
Putt-Putt Golf
2
Soccer Kick
3
Moonwalk
5
Jasmine has eight daisies and 3 vases: one large-sized,
one medium and one small.
She puts 5 daisies in the large vase, 2 in the medium
vase and 1 in the small vase.
Can you find another way to put daisies so that there
are the most in the large vase and least in the small
vase?
Try to find as many ways as you can put the daisies in
the vases with the most in the large vase and the least
in the smallest vase.
If you think you have found them all, explain how you
know those are all the possibilities.
Make 9 in as many ways as you can
by adding two numbers between
0 and 9.
For each set of numbers below, pick two
numbers that add to make six. Write an
equation that shows that those two numbers
add to make 6.
a.
b.
c.
d.
e.
3, 5, 3
6, 0, 2
1, 6, 5
3, 2, 4
4, 2, 6