Classifying Numbers
What are the four sets that numbers can fall into?
Natural Numbers, Whole Numbers, Integers, Rational Numbers
What do I use to solve an addition problem with positive and negative numbers?
What do I need to do to answer subtraction problems?
Keep, change, change. Then, play basketball.
Do I line up the decimals for multiplication problems?
No
-13.5+7.25=
-6.25
Is -12 a rational number?
Yes
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While at the grocery store, Mrs. Martin noticed that there were two different sized bottles of hot sauce, one was 16.9 ounces and the other 32.55 ounces. What is the difference in weight of the two bottles of hot sauce?
15.65 oz.
What is one key word I would box in a word problem that means multiplication?
Per, every, each, of
3/4+3/4=
3/2 or 1.50 or 1 1/2
If a number has a decimal, what number set does it go into?
Rational Numbers
Elimar went to the store and bought a new phone case for $15.87, two big bags of Takis for $2.68 each, and Hot Fries for $2.28. How much did she spend?
$23.51
Jose found a five dollar bill in his pocket. He lost $1.50 of this money. Then, he spent $2.25. How much money remained in his pocket?
$1.25
Each jar of sugar has a mass of 1.9 kg. What is the total mass of 13 jars of sugar?
24.7 kg.
-8.12-13.84=
-21.96
What is the smallest number set that the number below fits in?
-14/7
Integers
It will be -12oF degrees tonight. The weatherman predicts it will be 25oF warmer by noon tomorrow. What will the temperature be by noon tomorrow?
13oF
A football team gained 7 yards on the first down, lost 14 yards on the second down, and gained 13 yards on the third down. How many more yards do they need to gain another first down?
(10 yards is needed from the starting point to get a first down)
4 yards
Lorenzo paid $11.20 for four gallons of gas. How much was each gallon of gas?
$2.80
3/4-7/10=
0.05
Which of the following rational numbers are not also integers?
-12.0, 21/7, 0, 7/8, 4.6, -9/1
7/8, 4.6
Coach Mikesich charges $75 if you want to make a TikTok with her, plus $10 every minute recording. How much would it cost you if it took 13 minutes to make the TikTok?
$205
The temperature in Alaska was 4.8oF degrees. As the sun went down, the temperature dropped 11.2oF. What was the temperature after the sun went down?
-6.4oF
The temperature in Juno, AK was 40o at 7am. The temperature dropped 15o every hour for three hours. What was the temperature at 10am?
-5o
-3 1/2*4=
-13