How could you solve it?
What steps could you take to solve a problem that asks you to add or subtract decimals?
Example: 132.7 + 6.09 or 70 – 9.27
Line up the decimal points
Solve:
78.3 + 9.49 =
87.79
Calculate 3/4 x 6
18/4 or 4 2/6
If a box has a dimension of 4 inches by 6 inches by 6 inches, what is its volume?
144 cubic inches
How would you write 100,000,000 as a power of ten?
10 to the 8th power
What steps could you take to solve a problem that asks you to divide a whole number by a unit fraction?
Example: 1/7 ÷ 4
1. Draw a model
2. Divide it into sevenths
3. Color in one seventh.
4. Divide the sevenths into fourths.
5. Count the total number of pieces for the denominator and the total number of pieces colored in for the numerator.
Amanda bought 4 bags of potatoes at a market. Each bag of potatoes weighed 5.75 pounds.
Which of the following expressions can be used to find the total weight, in pounds, of the bags of potatoes Amanda bought?
A. (4×5)+(0.7+0.05)
B. (4×5)+(4×7)+(4×0.5)
C. (4×50)+(4×7)+(4×0.5)
D. (4×5)+(4×0.7)+(4×0.05)
D. (4×5)+(4×0.7)+(4×0.05)
Calculate 1/5 + 2/3
13/15
Which statement about quadrilaterals is true?
A. Every rectangle is also a parallelogram.
B. Every parallelogram is also a rectangle.
C. Every rectangle is also a rhombus.
D. Every rhombus is also a rectangle.
A. Every rectangle is also a parallelogram
The length of a pencil is 13.8 centimeters. What is the length of the pencil rounded to the ones place?
14
What steps could you take to solve a problem that asks you to multiply decimals?
Example: 3.45 x 8.1
1. Multiply normally then count the number of decimal places.
2. Move the decimal point in the answer to the left that many places.
A museum receives an average of 488 visitors per day. The museum is open every day. How many visitors would the museum receive in a month (31 days)?
15,128 guests
Mr. Shapiro divides 3 cups of raisins into equal servings of ¼ cup each. How many servings would he have?
12 servings of 1/4 cup
A food company packages flavor cubes used for making soup. The flavor cubes are packaged in a box that is in the shape of a rectangular prism.
What is the volume of one box of flavor cubes?
18 cubic centimeters
Which of the following is true?
A. 5.199 < 2.242 < 5.24
B. 5.199 < 5.24 < 5.242
C. 5.242 < 5.24 < 5.199
D. 5.24 < 5.199 < 5.242
B. 5.199 < 5.24 < 5.242
What could you do to solve a problem that asks you to explain the attributes of a figure?
Remember the main categories for attributes:
1. # of sides (are they equal?)
2. # of angles (are they right angles?)
3. Parallel lines
Solve: 5.12 x 2.6
13.312
Andy is painting a sign for his store. The sign is 2 ½ feet high and 1 ¼ feet wide, as shown. What is the area of Andy’s sign?
3 1/8 square feet
What attributes identify a rhombus?
1. 4 angles
2. 2 sets of parallel lines
3. 4 equal sides
The value of the 5 in 40.52 is how many times the value of the 5 in 115.78?
A. 1/10
B. 1/100
C. 10
D. 100
A. 1/10
What steps could you take to solve a problem that asks you to use multiple operations (order of operations)?
Example: 6×4−(5+3)÷2
Parentheses
Exponents
Multiplication
Division
(if the equation has both M and D, go left to right)
Addition
Subtraction
(if the equation has both A and S, go left to right)
There are 144 pages in a book. Connor will read 16 pages of the book each night. Which equation can be used to find t, the total number of nights it will take Connor to read the entire book?
A. 144 ÷ 16 = t
B. 144 x t = 16
C. 16 x 144 = t
C. t ÷ 16 = 144
A. 144 ÷ 16 = t
At the start of the first game, 3/4 of the stadium’s seats were filled with people. At the end of the game, 2/3 of those seats remained filled. What fraction of the stadium’s seats remained filled with people at the end of the first game?
3/4 x 2/3 = 6/12 or 1/2
Which of the following is always true about an isosceles triangle?
A. The sum of its angles is 100°.
B. It cannot contain a right angle.
C. Two of its sides must be congruent.
D. All three of its angles must be congruent.
C. Two of its sides must be congruent.
Charlotte added 550 milliliters of orange juice to 500 milliliters of pineapple juice to make fruit punch.
What is the total amount of fruit punch, in liters, that Charlotte made?
A. 1.0
B. 1.5
C. 1.05
D. 1.005
C. 1.05