What is the value of the expression?
4 times (13 times 5)
910
How many 1 x 1 x 1 cubes are in the rectangular prism?
60un^3
Ms. Zillich counted the pencils in one box, 24. The box has 6 layers. How many pencils can the box hold?
144 pencils
Mrs. Antles wants to bring all 64 5th graders on the field trip. If each bus can carry 7 students, how many buses will she need to order?
10 buses!
Need to round up.
What is the value of the expression?
5 x (2 x 4) + 6 x (3 x 8) + 1 x (2 x 5) =
194
What is the volume of this rectangular prism?
Mr. Martin has a math box with wooden blocks that are each 1 in. cube in size. He filled the first layer with 9 blocks. He then lined up 9 more blocks to fill up the first row. How many cubes does he need to fill up the entire box? The partially filled toy box is shown below.
90 1-inch cubes
V = B * h
V = 9 x 10
V = 90
Four students sold subs for 2 weeks and earned $78.00. They shared the work equally, so they want to share the money they earned equally.
How much money should they each get?
$19.50
Which phrase is represented by the equation 26 x 13 = (26 x 10) + (26 x 3)?
a) To find 26 x 13, I multiply 20 x 6, and add it to 1x3
b) To find 26 x 13, I multiply 20 x 6, and add it to 26x3
c) To find 26 x 13, I multiply 26 x 10, and add it to 26x3
26 x 13 = (26 x 10) + (26 x 3)
c) To find 26 x 13, I multiply 26 x 10, and add it to 26x3
How many unit cubes need to be added so the figure will have 24 unit cubes?
There is 8 already, so...
16 unit cubes should be added.
The area of the base of a rectangular prism is 18 cm2. The height of the prism is 6 cm. What is the volume of the prism?
V = B * h
V = 18 x 6
V = 108 cm3
Mr. Hill is planning a new field trip. He wants to bring the whole school of 418 students. If each bus can carry 7 students, how many buses will he need to order?
60 buses!
Fill in the missing number in the equation below.
240 x 18 = 9 x ____
240 x 18 = 9 x 480
18 is double of 9
To balance it, double 240 --> 480
Which prism has a greater volume?
A = 80 cubic units; A is larger!
B = 63 cubic units
Write a numerical expression to represent the statements below.
To find the volume of a box that has a 63 by 41 base and 86 layers, I multiply the dimensions of the base first and then multiply the number of layers.
V = (63 x 41) x 86
Eight students want to share their earnings of $410.00. How much money does each student earn?
$51.25
(193 x 145) x 86 = 193 x (145 x 86)
Without solving the equation, how do you know this expression is true?
(193 x 145) x 86 = 193 x (145 x 86)
It is true because of the associative property --
For multiplication and addition, grouping does not change the answer.
Which expression cannot be used to represent the volume?
a) 15 x 4
b) 5 x 3 x 4
c) 4 x 3 x 5
c) 8 x 4 x 5
c) 8 x 4 x 5
8 is not a dimension.
A box holds 611 erasers. Each layer has 47 erasers.
How many layers does the box have?
13 layers
611 divide 47 = 13
A bunch of kids looted 44 chocolate bars from a house during Halloween... There were 5 kids. Before they divided the chocolate bars, one of the older brothers said they wanted an equal share too. How many chocolate bars does each person get?
44 divide 6 = 7 1/3