Multiplication (Category #1)
True or False?
19 x 37 = (20 x 7) - 1
False because:
19 x 37 = 703
(20 x 7) - 1 = 140 - 1 = 139
What is perimeter?
Sum of all sides of a shape
How many sides does a quadrilateral have?
4
The fourth graders are setting up the playground for field day. One of the parents brings 74 balloons to decorate the tables.
If the fourth graders divide the balloons evenly among 8 tables, how many balloons will each table get?
9 R 2
Fill in the blank to make the equation true.
57 x 28 = ____ x 14
114
How do you calculate the area of a rectangle?
Length x Width
Name the 3 types of angles and their angle measure.
Acute - 1 degree to 89 degrees
Right - 90 degrees
Obtuse - 91 degrees to 179 degrees
Determine the pattern and finish filling in the chart.
(See #4)
4 x 11 = 44
40 x 11 = 440
39 x 11 = 429
726 divided by 6
121
If a rectangle has a perimeter of 188 inches, and one side that measures 21 inches, what is the length of the other side?
73 inches
Is a trapezoid a parallelogram? Why or why not?
No because:
1. It only has 1 pair of parallel sides
2. Not all opposite sides are congruent (the same length)
3. Opposite angles are not congruent (the same measure)
(See #3)
Anita Bath finished the race in 5 minutes and 41 seconds, and Rita Book finished in 6 minutes and 13 seconds. Who finished the race sooner, and by how much?
Anita finished first by 32 seconds.
Use the doubling and halving strategy to solve the following problem:
(See #1)
25 x 56 = 50 x 28 = 100 x 14 = 1400
Find the area and a perimeter of a square with a side length of 15 inches.
Perimeter = 60 inches
Area = 225 square inches
DOUBLE JEOPARDY!!!
Why is a square always a rhombus, but a rhombus isn't always a square?
A square is always a rhombus because:
- 4 congruent sides (all sides are equal length)
- 2 sets of parallel sides
- Opposite angles are congruent
A rhombus isn't always a square because a rhombus doesn't have to have right angles.
In Zach's class, 3/5 of the 25 students are boys. How many girls are in Zach's class?
2/5, or 10 are girls
True or False?
160 x 20 = 32,000 divided by 10
True (3,200)
Fill in the blanks and calculate the area:
(See #2)
16, 80
Area:
16 x 15 = 240
A quadrilateral has angles measuring 86 degrees, 143 degrees, and 84 degrees. What is the angle measure for the 4th angle?
47 degrees
Fred is planning to make brownies. Each pound of brownies costs $4.25 to make. Use a ratio table for finding the cost to make 11 pounds of fudge.
$46.75
(See #5)