Unit 1: Numbers & Operations

Classifying Numbers

100

What are the four sets that numbers can fall into?

Natural Numbers, Whole Numbers, Integers, Rational Numbers

200

Is -12 a rational number?

Yes

300

If a number has a decimal, what number set does it go into?

Rational Numbers

400

What is the smallest number set that the number below fits in?

-14/7

Integers

500

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

Addition/Subtraction

100

-13.5+7.25=

-6.25

200

-8.12-13.84=

-21.96

300

3/4-7/10=

0.05

400

The temperature in Alaska was 4.8^oF degrees. As the sun went down, the temperature dropped 11.2^oF. What was the temperature after the sun went down?

-6.4^oF

500

It will be -12^oF degrees tonight. The weatherman predicts it will be 25^oF warmer by noon tomorrow. What will the temperature be by noon tomorrow?

13^oF

Multiplication/Division

100

Do I line up the decimals for multiplication problems?

No

200

-3 1/2*4=

-13

300

125 divided by 0.5

250

400

The temperature in Juno, AK was 40^o at 7am. The temperature dropped 15^o every hour for three hours. What was the temperature at 10am?

-5^o

500

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

Word Problems

100

What is one key word I would box in a word problem that means multiplication?

Per, every, each, of

200

Identify the operation

Each jar of sugar has a mass of 1.9 kg. What is the total mass of 13 jars of sugar?

Multiply 1.9 times 13

24.7 kg.

300

Identify the operation

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?

5-1.50-2.25

$1.25

400

Identify the operation

Lorenzo paid $11.20 for four gallons of gas. How much was each gallon of gas?

Divide 11.20 by 4

$2.80

500

Identify the operation

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?

Multiply 2.68 times 2

Add that to 15.87

Add that to 2.28

= $23.51

Extra

100

What is the process for subtracting? (especially with negative numbers)

KEEP CHANGE CHANGE

200

What do you do when adding with negative numbers?

PLAY BASKETBALL!

300

3/4+3/4=

3/2 or 1.50 or 1 1/2

400

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

500

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.