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exponents
multiplication
decimals
vocabulary
reasoning
100
Write the exponent for 1,000.
10 to 3rd power
100
153 x 12 =
What is 1,836
100
Luke is 48.21 inches tall. On his fifth birthday, he was 39.58 inches tall. How much has she grown since her fifth birthday?
She has grown 8.38 inches.
100
What is the product of 13 and 5?
65
100
Liz bought 42 strips of licorice. Each licorice strip is 4.9 inches long. Estimate the total length of licorice that Liz bought.
About 200 inches long. (40 x 5 = 200)
200
68 x 10? = 6,800
10 to 2nd power
200
A basketball gym has 25 rows of chairs with 103 chairs in each row. How many chairs does the gym have in all?
What is 2,575 chairs.
200
23.05 23.548 23.609 23.65 23.58 Which two numbers will round to 23.6 when rounded to the nearest tenth?
23.609 and 23.58
200
Leah shaded .43 of one box. Kim shaded .38 of another box. What is the sum of the decimals?
What is 0.81
200
Melinda is the manager of a local restaurant. She needs to buy new uniforms for her 14 employees. She has a budget of $2,000. A new uniform costs $185. Melinda says, "Since 10 x $200 = $2,000, I have enough to buy the uniforms. Do you agree with Melinda? Explain
No. 10 is an underestimate of the 14 uniforms. $185 is really close to $200 so the actual will be much higher. 14 x $185 is $2,590
300
True or False 40 x 10 to 4th power = 40,000
False. It is 400,000
300
Target sold 218 video games on December 22nd. Each video games was $49 each. What is a good estimate for the total sales of the video games?
What is 200 x $50 = $10,000
300
Which is the missing factor? ____ x 3.7 = 15.91 a. 40.3 b. 14. 3 c. 4. 3 d. .43
What is 4.3
300
What do you call an unknown number in an expression. Example... 2 + 7 = n n is called a _________
A variable
400
Write 23,425 in expanded form using exponents.
See white board
400
Mrs. Nelson bought 239 boxes of pencils for Linwood's teachers. There are 18 pencils in each box. What is the total number of pencils, p, in all of the boxes? Write and solve an equation for p.
239 x 18 = p p = 4,302 pencils
400
Ryan spent $5.98 on lunch. Luke spent $7.59 on lunch. What was the total amount the two boys spent on lunch?
What is $13.57
400
Write an expression that equals 100.
10 x 10 = 100 50 + 50 = 100 etc....